4/7/12

12 Months of Nature: March

Events conspired to force March's outing into April (though to be fair, it was only one day late). I hate to cheat early, because it can open the door to cheating regularly, but life has to take precedence to blogging about life. Unfortunately, I also missed seeing the targets of my trip. I can spin this positively, though. You see, the nice thing about this hobby is that even spectacular failure can be eminently enjoyable. If you're searching for an elusive creature, or desperately hunting morels, or trying to reach a difficult peak... succeed or fail, you're still outside. You're immersed in nature and surrounded by things that probably interest you in some way. Success is of course rewarding, but failure isn't depressing.

It was easy to combine two events from my guidebook into one trip, and given the driving distance involved it seemed like common sense to do so. Among the events not chosen for March were: rare gulls, tundra swans, and "accidental" species. That last one refers primarily to birds whose migratory senses have failed and sent them to who-knows-where. The phrase "primarily to birds" reminds me to point out my one disappointment with this book so far: it leans quite heavily to birding. So far 11 of the 15 suggested activities have focused on avian life. I have no aversion to bird-watching, but I had hoped for a bit more diversity. It looks like the ratio gets a little better in April, but a "guide to the natural year" whose April section excludes morel hunting seems like sacrilege.

March Events: Endangered Fox Squirrels and Migrating Ducks and Geese

This double-dip was made possible by the proximity of two "hotspots" to one another. I thought that either target individually might be difficult to spot, so the freedom to do both in one trip seemed like a prime opportunity to raise the odds of success. I was pretty enthusiastic about this trip from early March when I started planning it, because it offered two separate chances to see species that are a bit outside the norm. It disappointed me when one thing after another caused the trip to be pushed back, but I was determined to continue with this twelve-month project.
Aside from the stuffed specimen, this was pretty much the only evidence of fox squirrels, although there is a third example to be mentioned later.

Seeing Delmarva Fox Squirrels was an exciting prospect, because they're a) endangered, b) adorable, and c) enormous compared to other squirrels. The visitor center at one of our destinations had a taxidermied example, and so at least I know what one of these beasts looks like.

The rare gulls were something of a longshot anyway, especially since we were late. The migratory season for these birds starts at the beginning of March, and while stragglers are always possible several weeks later, April 1st was a bit of a stretch.

The Location

This trip took us first to Blackwater National Wildlife Refuge, and then to Wye Island Natural Resources Management Area. The former does not allow pets (outside of vehicles, anyway) but is a beatiful drive. There are several short hikes available in Blackwater, and they are short enough that leaving a small companion (say, for example, a beagle-basset mix) in the car is perfectly safe and acceptable. This doesn't mean your small companion will like it. The latter is beautiful as well, but also pet-friendly. Wye Island NRMA offers about a half-dozen short-to-medium length hikes, of which we did two. Since Wye Island is directly on our way back from Blackwater, combining these two destinations into one outing was extremely easy.

Why there, and Why then?

Delmarva fox squirrels at Wye Island:
 This squirrel has a limited habitat range to begin with - it can only be found on the Delmarva Peninsula. Within this already small area, the squirrel has been eliminated from most places. Wye Island is a pocket of woods that still has everything necessary for a fox squirrel population; Blackwater also has some such areas, as does Eastern Neck NWR.  March is a good month for seeking them because their activity increases as their winter food stores begin to run dry. As I understand squirrel behavior in general, they are not hibernators but do spend most of the winter in their dens.
Migrating ducks and geese at Blackwater:

In this case the timing is the key. Migrating birds are directed by the lengthening days int he Spring, and so their journeys can be predicted with some accuracy after a few years of observation. Three species of geese, almost thirty species of duck, and tundra swans migrate through the Eastern mid-Atlantic every March. For several weeks, spots like Blackwater NWR provide havens for these birds on their journey between their two regular habitats (some, of course, stay in the region and can be seen more or less all year). Many, however, can only be seen in this general area during their migrations.


The Trip, and What I Learned

A turkey vulture
We didn't see any Delmarva fox squirrels, and we missed out on the migrating fowl. Yet this trip was in no way a disappointment. What we did see was lovely. Blackwater and Wye Island are both places I recommend visiting without hesitation. They are lovely landscapes and offer much in terms of bird-watching, even if the rare and migrating birds are absent. There is a viewing scope trained on a bald eagle nest at Blackwater, and the drive there meanders through several ideal raptor habitats. There are man-made nesting sights for Osprey, as well. Our day included sightings of: American robin, cardinal, American crow, mallard, Canada goose, osprey, great blue heron, turkey vulture, and bald eagle. There were also several small songbirds and several gulls and plovers, although I didn't try to identify these specifically. A final bird-related sighting was a cluster of owl pellets along one of the trails we hiked. Their coloration and contents suggested that we might have found the remains of a Delmarva fox squirrel.

jack-in-the-pulpit
Plant life is coming back into form for the spring, and so we also saw several lovely floral displays. Among them were dense coatings of mayapples and a few patches of jack-in-the-pulpit, the latter appropriately on a side trail called the "jack-in-the-pulpit trail." Also spotted were some cattails, lilies, and princess pines. Violets lined many segments of trail, adding a nice spring touch.

I learned a lot about the Delmarva fox squirrel, although very little about the ducks and geese we also didn't see. I have also resolved to take the word "endangered" more seriously. Our squirrel technically is only a subspecies of the fox squirrel, Sciurus niger; however, I understand there are those who contest that it deserves its own species (one can imagine Monty Python shouting "Splitter!" in anger). It is much larger than the common gray squirrels DC residents are familiar with, and has lighter fur with a white underbelly. In terms of behavior, it spends more time on the ground and prefers a higher canopy than its urbanized cousin. It is most active early in the morning, which I think contributed to our failure. I believe that the many species of fowl we had hoped to find were already gone; by now they are likely well-settled in their summer homes. We returned home from this trip having missed our objectives, but feeling nonetheless fulfilled by the beauty of nature.

3/21/12

Naturalism on Speed: Challenge 2

Welcome back to the silliest feature of my blog, the Naturalism on Speed Challenge. Last year I challenged myself to identify 50 species before the CASA River Century and another fifty by the end of the year. This time I'm going for fifty more, for a grand total of 153. I expect this one to be much harder because so many of the most familiar species are eliminated. Further, since there are only so many terrestrial animals likely to show themselves I will be primarily identifying plants (outside my wheelhouse) and squinting at birds (which move as quickly as I do). I suppose insects might be a promising well to draw from, but those are, well, very small.

As with last time, I'm sure I won't have pictures of everything. After all, I have specifically stated that stopping to get a better look is off-limits, and I haven't mastered the art of photography from the back of a moving bicycle (and will never attempt to do so). Fortunately, the first few species this year are a product of some new wildflower knowledge I picked up within the last week or so, and so I happen to have a few pictures to show off. The top photo is bloodroot, which is sort of sneaky-beautiful Easy to overlook but worth the time to stop for. Photo two is a blanket of lesser celandine, while the third is the familiar mountain laurel.

Some of these may just get their own species features (I'm looking at you, bloodroot). Bloodroot and lesser celandine were the inspiration for returning to this project. They are beautiful wildflowers which bloom in early spring - a refreshing burst of color after months of grays and browns. Violets show equally early and are equally refreshing, but there are quite a few similar species and I have little hope of nailing them down as I rider by. I'm pleased to add mountain laurel this time,  because this was on the "how do I not have this yet" list along with sassafras and chickadees.

The List

I thought about reproducing the original list in this space, but it is something of a wall of text. I'll see if I can figure out a non-obnoxious way to present it later.
  1. Ranunculus ficaria (lesser celandine)
  2. Sanguinaria canadensis (bloodroot)
  3. Kalmia latifolia (mountain laurel)
  4. Hieracium pratense (yellow hawkweed)
  5. Claytonia virginica (Virginia spring beauty)
  6. Lamium amplexicaule (greater henbit)
  7. Dryocopus pileatus (pileated woodpecker) added 3/22/12
  8. Mertensia virginica (Virginia bluebells) added 4/6/12
  9. Dicentra canadensis (squirrel corn) added 4/6/12
  10. Haliaeetus leucocephalus (bald eagle) added 4/6/12
  11. Phlox divaricata (wild blue phlox) added 4/6/12
  12. Brassica juncea (Indian mustard) added 4/15/12
  13. Geranium maculatum (wild geranium) added 4/15/12
  14. Trillium grandiflorum (large-flowered trillium) added 4/15/12
  15. Meleagris gallopavo (wild turkey) added 4/15/12
  16. Corvus corax (common raven) added 4/15/12
  17. Cardamine concatenata (cutleaf toothwort) added 4/15/12
  18. Heracleum maximum (cow parsnip) added 4/15/12
Starting with a little over ten percent accomplished feels good... but it doesn't remove the daunting nature of the task ahead.

Grainy photo of pileated woodpecker snapped in June of 2010.
That didn't take long! One day and one more species to add to the list. This was an awesome one too: the pileated woodpecker. I came across this gorgeous bird as I slipped back into the woods from a road crossing. He was sitting on a stump at about ankle height (from a cycling POV, of course) no more than a few inches from the side of the path. I guess I wasn't making a lot of noise, because he didn't take off until my front wheel was even with him. Never been even remotely that close to such a bird - and that proximity gave me a real sense of its size. It was more than a foot tall, which may not seem like much but is impressive when seen at close range.

My most recent training ride took place outside the usual habitat zone I ride in (on Shenandoah National Park's Skyline Drive, to be precise). As such, I entered with high hopes of really putting a dent in this year's challenge. I did, but not quite to the level I had hoped. Seven new species went on the books, but a few were plants I could have easily picked up in the 'burbs. Unfortunately the black bear I saw was from the car, I only heard the coyotes (at night anyway),  and I couldn't pin down the exact identity of the owl or some of the hawks I rode past. Good get on the wild turkey, though.

New species from most recent edit: 7
Running Total: 121
Animals: 44 (11 mammals, 27 birds, 4 insects, 2 reptiles)
Plants: 72
Fungi: 5

3/20/12

Back in the Saddle

I don't think fierce pedaling would be enough to escape that fellow... 

With the return of Spring (which is now official, if specious) comes the return of cycling. While I have been riding to work intermittently since the end of January, this weekend marked my first ride longer than that. That ride served as a reminder of just how awesome it is to live in the DC suburbs and own a bike capable of handling varied terrain. My route took me through urban streets in Silver Spring, down Beach Drive (closed to motorists on weekends), past (and into) the National Zoo, onto the National Mall, along the C&O Canal Towpath, and back to Silver Spring on a paved bike trail. All of this was less than a 30-mile ride.

Boulder Bridge in Rock Creek Park is one of my favorite cycling landmarks.
 
So what does a new season of cycling mean? Well, I'm doing another century ride, or the same one over again if you prefer something that sounds more zen. The CASA River Century was a lot of fun and training for it was good for me, good for the environment, and good for traffic between Silver Spring and Rockville. Dustin and I will be joined by a third rider this year, and hopefully this time it serves as a prelude to the Sea Gull Century. Other life events might make this difficult, but I think I'll be able to make it happen.

The new season also means a new Naturalism on Speed challenge for me, which may bore the bajeezus out of my readers. Even if it does, it will at the very least hone my knowledge and skills, which in turn will make me better at this*. I'm aiming for fifty new species to add to last year's final total (which will make 153 the magic number). Sunday's ride netted me five or six to get started with. A quick recap of the rules:
  1. I have to ID each species positively.
  2. I can't stop for a better look, but I can count what I see when I'm already stopped.
  3. I must know what I'm seeing when I see it - research can only help for next time.
  4. Domesticated animals and people don't count, nor do plants in planters/gardens.
  5. I can't count specimens I see all the time and thus have the chance to study thoroughly.

The sights in DC are iconic and worthwhile - and with a bike you can take in a huge number of them in just a few hours.


I'll close by reminding everyone how bike-friendly the Washington, DC area is. The Capital Bikeshare program is awesome, and there is an extensive network of trail systems. I could conceivably ride (about 90 miles) from my apartment to my parents' house just outside of Martinsbug, WV. The Metro makes it easy to close little gaps in your ride by hopping a train for a stop or two (except during weekday rush hour). The buses are theoretically all equipped to handle your bicycle.








*That's my polite way of saying "deal with it."

3/3/12

Species Feature #11, Mountain Laurel

I thought now would be a fitting time to feature this species, given my recent engagement to Laurel. While I believe she was technically named for the bay laurel (which isn't even closely related, taxonomically speaking), the mountain laurel is about as close as we're likely to find growing wild in this area. In this case "close" refers non-scientifically to plants called "laurels."

Mountain laurels have stunningly beautiful white flowers with red or pink highlights. Something I didn't realize about them is that they are evergreens... and so my prior thoughts about them as a "sign of spring" were in error. Still, I don't think they're generally quite as striking in winter as they have appeared the last few weeks.


A very photogenic plant.
 
Kalmia latifolia Quick Facts

Common Name(s): Mountain Laurel, Spoonwood, Ivybush, Sheep laurel, Lambkill, Calico bush

Taxonomic Breakdown:

  • Kingdom - Plantae
  • Division (Phylum level) - Magnoliophyta (aka Angiospermae)
  • Class - Eudicots (not technically a Class, but this is an approximation)
  • Order - Asterids (another approximation. Asterids are part of the "core Eudicots.")
  • Family -Eracaceae
  • Genus - Kalmia
  • Species - latifolia

Range:  From southern Maine to northwest Florida. It can be found as far west as Mississippi with patches in Indiana and Louisiana as well.

Showing off its evergreen properties in the snow

The ovine names above were bestowed upon the plant because of its poisonous properties. It has been known to kill sheep, cattle, and horses and is also toxic to humans. I was alarmed to read that the plant is toxic, yet used in food... and that it isn't one of those situations in which the toxicity is removed with cooking. I dare not investigate this further, lest I become paralyzed with fear.

Mountain laurels are gregarious in this area, and quite hardy. I have of course found them in Shenandoah National Park, but I have also noted their presence in myriad other places. Patuxent wildlife refuge has its share, as does Seneca Creek State Park. The flowers of course are the easiest way to identify this species, but the leaves are also fairly distinctive, at least when compared to other shrubs of the Mid-Atlantic.

The family to which it belongs, commonly referred to as the "heath' or "heather" family, is also home to a variety of familiar plants. Several berries (blueberries and cranberries, notably) are members of this family. Azaleas and rhododendrons also fit here, as do the common heathers of Europe.

Showing off its hardiness by growing from a rock.
I want to conclude with a note about the "taxonomic breakdown" I have been including in these features. It is important to note that these things are fluid, and one biologist may not agree with another over a species' placement. Further muddling this is the fact that there are even competing systems of classification, and that when it comes to plants phyla, classes, and orders are really "clades" which are not quite at the same level of biological classification. I have listed them that way to avoid confusion, and hope that I haven't instead created confusion. Believe it or not, Wikipedia is a reasonably reliable source for sorting this all out. I don't trust it to have the most current information, but it does do a good job of discussing the competing systems and, for example, what an "Angiosperm" is.

2/29/12

12 Months of Nature: February

Like February (that most dismal of months) itself, the February section of  Seasonal Guide to the Natural Year was generally short and forbidding. When conceiving this project, I had expected some months to be easier than others, and even expected to fail spectacularly at achieving the aim of my journey once or twice. But after reading my options for February, I despaired of even being able to put together a trip worthy of this blog... would "12 months of nature" become "11 out of 12 months of nature" so soon?

Option 1, "Winter Hawks" sounded promising until I discovered that all of the recommended spots were prohibitively far away. Option 2, "Tracking" seemed a little too general and unexciting for my purposes. Options 3 and 4 were titled "Lake Eerie Steelhead,"  and "Exploring Winter Beaches," respectively - both of which were also out because of travel time. The final option, "Pelagic Birding Trips," sounded fascinating but requires much more organization than I had the time or inclination to put together. Frankly, I had to look up the word 'pelagic' anyway.


February Event: Tracking

My choice of a human footprint here doesn't mean
I failed entirely...
So, I chose "Tracking" from the list above. I could have instead resigned myself to traveling a greater distance than I wanted to with a good chance of not seeing the hawks or steelhead I sought. The payoff might have been far more interesting. But the conservative approach meant that it would be hard to fail. One of my favorite places, Shenandoah National Park, was a recommended destination. There was the possibility of snow, which would only make track identification easier, in theory. Besides, the point of tracking isn't necessarily to find fauna itself, but to understand and interpret signs of its presence and impact on the environment.



The Location

I have repeatedly talked about this place, and I'm sure it will come up over and over again in this blog. So I won't bore you with redundancies (except in link form). Looking back, though, it's hard to believe I only have one post solely about Shenandoah.

Why there, and Why then?

Well, the guide was right about one thing. There was definitely snow.
The answer to "why there" was sort of unclear... really, one can track anywhere outside. Animals walk, poop, eat, and so forth everywhere. I think the guide suggested Shenandoah primarily because there is a ton of open space, and because wildlife traffic is a lot higher than most places in this region of the US. I had an ulterior motive for going to the park that most of my readers are aware of. So "why then," then? Well, I think they stuck "tracking" in February primarily because it was the toughest month to fill out with reasonable activities, but also because of the likelihood of snow.


The Trip, and What I Learned

Like the previous trip, this one was wonderful. Unfortunately I didn't learn much about tracking - I relied on a few things I already know and just enjoyed getting a good hike in in February. We got to the park pretty early, and chose one of our favorite spots: Mary's Rock. (There are those ulterior motives again). The last time we had done this hike was in the hottest part of the summer, so it was a nice change of pace (and still gorgeous) to hike it with a dusting of snow. What's nice about this hike is that although steep, it's less than a two-mile trip from the parking lot to the summit. And the view is spectacular.

The trailhead - per the sign, much of this hike is on the Appalachian Trail.

We thought this was beautiful - a veritable explosion of color amid the white, gray, and brown.

I have a couple of decent photos of the view from Mary's Rock itself, but I don't feel they do it justice. If you follow the link above there are a couple that almost get the job done, but it's one of those things you just have to see to appreciate fully. Luckily for DC denizens, it's not too far away and you don't have to be a marathon runner to pull off the climb.

When we were finished with that hike, we decided to make a quick stop at one of the park's other notable spots, Big Meadows. As usual, there were quite a few deer nearby (and signs of other fauna, which I'll get to). I have to say, though, that Big Meadows is pretty drab in the dead of winter. There's still a certain beauty to the place, and I'm glad I have seen it in its more dormant state, but I wouldn't put it at the top of my list for winter outings.

Big Meadows and one of the creatures it is famed for. As a nerd about such things, it has often bothered me that "Big Meadows" is a singular proper noun for a place composed of plural meadows. But I digress (as usual).



My guess is these were left by a squirrel. But it's hard to be
certain without a clear footprint.
 You don't even have to be an astute reader to wonder where the bit about tracking is, since that was after all the point of the exercise. Well, to be frank, we didn't find a lot of identifiable tracks, even in the snow. I think the amount of snow was such that it made it harder rather than easier - just enough to cover any visible tracks but not enough to leave good tracks. Also, the ground was still frozen. Any place where deer or some other large animal had clearly been was mostly torn up into a tangled mess. The clearest tracks were those left by fellow hikers and their canines. However, as you'll see below, footprints aren't the only signs one can use as clues to animal activity.




Deer poop
 I apologize for this next photo, but one just can't talk with any reasonable credibility about tracking without briefly discussing poop. It just can't be done. The scat at right belongs to white-tailed deer, although on this trip we also saw quite a bit of carnivores' waste as well. It could have been from foxes, coyotes, bobcats, or possibly just family pets. There was a lot of high fur content, though (you can tell just by glancing) so my guess is "coyote." In the past there was an unfortunate incident involving Franklin and some bear feces, but I don't want to talk about it. So end my scatological ramblings for the day.



A couple of other signs of note were some loose feathers, and some obvious groundhog trails. Photos of those are even more boring than photos of poop, though, so I'll let it go.

When tracking, what a good naturalist is really after is not just  an identity of what had passed this way, but a story of what it was doing and why. If the deer tracks are clustered in one muddy spot, what made them behave this way? Was it a predator? A mating display or fight for dominance? If there's loose fur, did the owner just get snagged on a twig or was there some sort of conflict? How recent are the tracks you're looking at? Was the animal moving quickly or slowly? One thing I noticed was that some of the deer scat was clustered into piles, while other spots were scattered. This led me to wonder why those particular deer were exhibiting divergent restroom behaviors. It's this type of question that can turn one from aware of nature's signs to an expert at interpreting them. Myself, I'm somewhere in between... I know how to ask the questions but not often how to answer them. Good guides on tracking do exist, though I can't offer much in the way of critique. If you're interested in learning how to track and "read sign" I suggest that you research these and select one... but it's really the experience that will teach you. I will leave you with my favorite deer picture from the day.

This young buck is showing his antler velvet... I've never managed a clear photo of this before, so I'll call it a win.

2/23/12

Further Evidence of Spring

This is more of a follow-up than its own post. I don't have a ton of new thoughts to share, but since I wrote yesterday about the signs that spring is upon us I have been hyperaware of anything that could constitute such a sign. I've been looking for them. I continue to be surprised by them. This could be thought of as a validation post (see! I'm not crazy!) There may also be an element of wishful thinking: Spring! morels! biking! BEING OUTSIDE! Laying all that aside, I'll just present some snapshots (all taken today). I'm not going to try to identify what I don't know, or go into detail about what I do know. So please, just look at the pretty things.

In this out-of-focus photo, you can see that some of the topiary at Rock Creek Springs is budding. This appears to be something related to holly, but how closely I don't know.

I don't believe these red berries usually start appearing for a few weeks.

Apparently not only are dandelions already growing, but some have even gone to seed!


Some very pretty blue flowers are also showing themselves.

Crocuses?

I saw these and thought "wow, the daffodils already have buds!" So imagine my surprise...


...when I saw these! Yes, I saved the best for last.
I know this has all been plant-based evidence of Spring. I had hoped to steal a picture or two of some of the robins and other returning birds I've been seeing, but either they weren't cooperating or I was too lazy. I was also both too early and too late to catch the bees in action today.

2/22/12

Seneca Creek State Park and the Return of Spring

I know that around here it's hard to think of this Spring as a "return" from anything. I can't recall a winter this mild. Did we crack three inches of snow? Nonetheless, the signs of mother nature waking up can already be seen, and it is a stark contrast to the grayness of early February. Why, this morning when I took the trash out I saw bees pollinating the bushes lining the front steps. Bees? Yes, bees.

The signs hardly begin and end with bees, but for me that has been the single most surprising among them. On Sunday I took a stroll to Joe's Record Paradise in Downtown Silver Spring, and along the way I noticed a number of small wildflowers already in bloom. For over a week now I have seen green shoots peeking out of the ground in various places, and I've noticed greater activity among the birds and small mammals. It seems odd to be typing this on February 22nd, but I can't argue with what I'm seeing.

Looking for a way to enjoy the warm weather and the rest of nature's early offerings, Laurel and I set out for Seneca Creek State Park on Saturday. It wasn't one of our more intense trips, but we got in a nice four-mile hike around the lake and took in some lovely sights. Unlike our previous new adventure (Monocacy), this park had a lot to offer, and I'm sure we'll be returning sometime in the future. Apart from the beauty of Clopper Lake, the Park had numerous beautiful picnic areas and pavilions. It also extended for unexplored (by us) miles along Seneca Creek. In fact, combined with other area parks, one could stroll through uninterrupted parkland from the Potomac River all the way to Damascus, Maryland. Several of the trails are also available to mountain bikers. It seems both kid-friendly and wild enough to make the most hardened naturalist happy.

Clopper Lake, the primary feature of our day's excursion.


I spoke above briefly of renewed bird activity. Well, in the park we did hear and glimpse a few songbirds, but it was still primarily waterfowl that were on display. In attendance were of course the run-of-the-mill Branta canadensis (Canada goose) and Anas platyrhynchos (mallard). However, we also sighted through binoculars a small flock of Bucephala albeola, or buffleheads. These are fairly easy to recognize by the large white patch at the back of the head (males only). The females have a smaller white stripe slightly lower on the head. I didn't get a precise count, but our flock consisted of at least a dozen birds, mostly female, although some may have been immature males and I was able to pick out for certain three adult males. Additionally, we heard the shriek of at least one bird of prey, though we never caught a glimpse of its owner and I am not nearly adept enough at discerning birdcalls to hazard a guess as to its identity.

The sign also confirmed our suspicions about the presence of beavers.
We also discovered a restoration project aimed at the American chestnut, Castanea dentata. Chestnut blight is a problem in the park, as it has apparently been everywhere the tree occurs.  I'm not sure how likely they are to preserve the trees within the park, but I salute their efforts and wish them well. We may not always know we're doing the right thing when we act on nature, but biodiversity is good and plant biodiversity is suffering greatly in this region. Here's some further reading on the tree and its plight.






I took this photo thinking these were the "shoots" mentioned in the sign above. Thanks to some vigorous Google image searching, however, I no longer think so. Whatever this plant is, I hope it doesn't out-compete the chestnuts.
In terms of other plant life, there were more green things than expected. The pines and American holly (Ilex opaca) weren't surprising, but the mountain laurel bushes already possessed a wealth of green leaves. Even the mosses and prickly vines lent a refreshing color to the landscape. Even a few grasses were peeking through the mat of dead leaves.

The blooming mountain laurels can be seen here as a faint green band.

For those interested, visiting the park is an easy trip from DC and the surrounding area. Simply take Exit 10 from I-270 and proceed East on Clopper Road. The park will be on the left. From Silver Spring this is about a thirty to forty minute drive.