Showing posts with label Eriophorum. Show all posts
Showing posts with label Eriophorum. Show all posts

24 March 2013

The Gray Area between Work and Hobby

I remember my cousin's reaction the first time he found out that I botanized for fun.  He was pretty amazed that I would go out and slosh through wetlands to get covered in ticks, mosquito bites, and poison sumac.  Why would anyone do that and not get paid for it?  Why wouldn't they?  How can someone work in the environmental field and not be passionate about it?

That gray area is something I deal with all too often.  On a trip to Superior, Wisconsin to do vegetation sampling in late August 2012, a few of the people on my crew joined me on our day off for a trip to Buckley Creek and Barrens State Natural Area in Douglas County.  This 900-acre property was our "site of choice" that day because of the range of plant communities present, from very dry to very wet.  The resulting flora provided a wide range of interesting species for us to feast our eyes and lenses on that fine summer day.  Below I will discuss some of those species and communities.

Agastache foeniculum
Blue Giant Hyssop (Agastache foeniculum) is a plant of northern North America that I had read about but never seen, so it was a nice surprise to find it on the edge of the oak barrens at Buckley Creek and Barrens.  Primarily found in the upper Midwest, west of the Great Lakes, and into Canada, this mint also ranges as far west as western Montana, and it is found in scattered counties in the eastern United States. In addition to scrubby barrens, Blue Giant Hyssop can be found in dry upland forest openings, prairies, fields, and thickets.

Aster oolentangiensis
Many of us learned the plant in the photograph above as Aster azureus; the specific epithet is a reference to the ray flowers of this composite, which are said to be "sky blue" in color.  However, the rules of botanical nomenclature came into play when it was determined after many years of using the name Aster azureus that a different epithet for the same species had been published several months earlier than the specific epithet azureus.  The plant then became officially known by the first published name, Aster oolentangiensis.  This specific epithet is a reference to the Olentangy River in central Ohio where the specimen at the center of this debate was collected.  Some people seem to despise the specific epithet oolentangiensis, which rolls right off the tongue, but the inimitable Ed Voss was a fan of this name change, as he grew up in a town along the Olentangy only a few miles upstream from the location where the plant was first collected.  Descriptiveness and hometown pride aside, I'm happy to use the name Aster oolentangiensis to stay in line with nomenclatural law.  Many people now call this plant Symphyotrichum oolentangiense, the genus having changed as a result of molecular research.  Sky-blue Aster is found in prairies, barrens, glades, open woodlands, on dunes, and in savannas, often in sandy or shallow soil.  Its geographical range includes the central United States in a band along and just west of the Mississippi River, as well as areas around the Great Lakes.

Oligoneuron album
Speaking of name changes, this one's a doozy.  I first learned Prairie Goldenrod (Oligoneuron album) as Upland White Aster (Aster ptarmicoides).  In the 1970s, botanists began calling this plant Solidago ptarmicoides because the floral structures were more closely aligned with goldenrods.  Then, just about the time this name started gaining widespread use in the 1990s, the name Oligoneuron album came into play.  Many other names have been used for this composite in the past as well.  Prairie Goldenrod has its greatest distribution in the upper Midwest, west of the Great Lakes, but it is also found in numerous Missouri Ozark counties, in scattered counties in Michigan, and scattered elsewhere in the United States and in eastern Canada.  It has an affinity to calcareous soils, where it is found in dry sand, in limestone pavement communities, on glades, on rocky outcrops, and in prairies.  One habitat that is not mentioned in the references I've seen is in barren slag pits that have displaced dune and swale communities.  In this crime against nature "community," Prairie Goldenrod is one of the few native plants that seems to persist after years of degradation.

Liatris aspera
Rough Blazingstar (Liatris aspera) is an attractive species of a variety of habitats including prairies, barrens, dunes, glades, fields, savannas, and woodlands.  It is most frequently found growing in sand and silty loam soils.  This composite is found throughout much of the eastern half of North America, but its greatest distribution is in Michigan, Wisconsin, Illinois, and just west of the Mississippi River.  Rough Blazingstar is said to have edible corms that can be used as a survival food, but rodents are said to also feed on these corms and in some places are responsible for reducing the Rough Blazingstar population.  The blazing stars (Liatris spp.) have determinate inflorescences, meaning that the oldest flower clusters are at the tip of the inflorescence and the youngest flower clusters are at the bottom, so the inflorescence does not continue to expand in length as the season progresses.

Solidago nemoralis
Gray Goldenrod (Solidago nemoralis) is a very common composite found across much of North America with the exception of Alaska and extreme northern Canada and the western third of the United States.  It grows in fields and prairies, along roadsides, and in open woodlands in sandy, gravelly, and clayey soils.  The common name comes from the fine gray hairs that cover the stems, giving the plants an overall grayish cast.

Polygonella articulata
One of the more interesting looking yet overlooked plants of sandhills, dunes, beaches, pine barrens, and other sandy coastal and lakeshore habitats is Coastal Jointweed (Polygonella articulata).  As the first half of the common name implies, this species of the buckwheat family is found along the Atlantic coast and in the Great Lakes states and provinces, particularly in counties bordering the Great Lakes.  The second half of the common name is a reference to the jointed-like appearance of the plant, and especially of the inflorescence before buds emerge.  This appearance is a result of the ocreae (on the stems) and ocreolae (in the inflorescence).  These structures are short sheaths formed by the fused stipules, or leafy structures at the base of each leaf.

Bog
In addition to spending time in the dry oak barrens, we also tromped through a boggy area with typical bog/muskeg vegetation.  This bog had strong representation by plants in the heath family and sedges.

Eriophorum virginicum
One of those sedges was Tawny Cottongrass (Eriophorum virginicum), a striking species of bogs, conifer swamps, fens, marshes, and wet meadows.  This cottongrass is unique in that it has brown scales, and perianth bristles that instead of being pure white often have some brownish or orangish color to them.  It grows in the New England states and southwest along the Appalachians, as well as in the Great Lakes states and provinces. 

Thanks to those who joined me on this weekend outing to see such a unique Wisconsin natural area.

30 September 2012

Worth the Trip (and the Resulting Lack of Sleep)

Memorial Day weekend is always exciting for me, as it means a trip to somewhere in Michigan to meet up with old friends and participate in the Michigan Botanical Club Spring Foray.  This year's foray was centered in Pellston, Michigan (in the Tip of the Mitt) at the University of Michigan Biological Station.  In typical Scott fashion, I pushed the limits of human sleep requirements on this fine weekend.  I worked until after 5 PM on 25 May, then came home and packed my things.  I was finally able to get to bed around 9:30 PM for a three hour nap before heading out for the six hour drive to the field station.  I arrived just in time for a quick breakfast prior to heading out on my first field trip. 

Lake Huron Tansy
On Saturday I joined an all day field trip to Sturgeon Bay Dunes, led by Kathy Bricker.  One of the highlights of this trip was seeing the state-threatened Lake Huron Tansy (Tanacetum bipinnatum ssp. huronense).  In the United States, this taxon is only known from four states, and it is of conservation concern in the three states (Wisconsin, Michigan, and Maine) in which it occurs in the Lower 48.  It is also known from Alaska and much of Canada, and looking at the species in the broader sense, it is circumboreal, also occurring in Siberia.  In the Great Lakes region, Lake Huron Tansy is only known from calcareous sand dunes along Lake Huron and Lake Superior. 

Ram's Head Lady's Slipper
We also made a quick stop along a roadside to see Ram's Head Lady's Slipper (Cypripedium arietinum).  This intriguing orchid is a species of conservation concern throughout its United States range (it is known from nine Great Lakes and New England states; it also has a limited range in Canada).  It is most commonly found in calcareous soils of coniferous and mixed forests.  Ram's Head Lady's Slipper is a small orchid that can easily be overlooked.  The only other time I've seen it was when I was taking a brief bathroom break in a boreal forest in northernWisconsin and I looked down and noticed an odd orchid that was just past peak bloom... after finishing up, I bent down and found that I'd happened upon a new county record of Ram's Head Lady's Slipper that without the benefit of my small bladder would have continued to go unnoticed for an unknown number of years.

Dwarf Lake Iris
Caving to the pressures of a flora-happy group that had little regard for getting back to the field station on time, Kathy made another roadside stop to show us Dwarf Lake Iris (Iris lacustris), a Great Lakes endemic known only from Michigan, Wisconsin, and Ontario in areas bordering Lake Huron and Lake Michigan.  Some believe that this species should at best be considered a variety of the larger Dwarf Crested Iris (Iris cristata), a species with a more southern distribution.  Dwarf Lake Iris is a rhizomatous species that can form near carpets in the calcareous soils in which it is found, but due to its limited geographical range it is considered federally threatened.  Plants at this location were nearly past bloom when we saw them, with just a few holding onto flowers.  Dwarf Lake Iris is the state wildflower of Michigan.

That evening, instead of getting to bed early like my body told me to, I decided to stay up until after midnight visiting with friends.  The next morning, I was up by 6:30 AM with high hopes of seeing more rare plants on an all day field trip to the eastern Upper Peninsula peatlands with Brad Slaughter.

Dragon's Mouth
Brad does not disappoint.  After an hour long drive and some confusion in getting our group of several vehicles together, we all made it into Eckerman Fen where we saw a mix of calciphiles and acidophiles growing in mucky soils and sphagnum hummocks.  Although a couple of the sedges were highlights for me, the group seemed to enjoy Dragon's Mouth (Arethusa bulbosa) more than any of the other plants we saw in bloom.  I have to admit... even this sedgehead was a bit mystified by the enormous pink blooms of the Dragon's Mouth plants, which occur on relatively short stems growing out of the sides of sphagnum mounds.  Dragon's Mouth grows in bogs, fens, swamps, and sedge meadows in the northeastern states and provinces of North America.

Tussock Cottongrass
We then made a stop at a very different type of peatland community, Trout Lake Muskeg.  The flora was expectedly not as rich here as at the fen because the soil chemistry was more acidic, limiting the number of species that can tolerate site conditions.  However, we still saw a nice mix of plant species, including Tussock Cottongrass (Eriophorum vaginatum var. spissum).  This circumboreal sedge is found in the northeastern parts of North America in bogs, peaty meadows, and similar habitats. 

Small Yellow Lady's Slipper
As most of our group headed back for dinner, Brad, Rob Liebermann, and I decided to forgo the meal that was covered by our foray registration fees and to continue on to Summerby Swamp to visit another fen community.  As expected, a rich flora awaited us.  Though there were many highlights, it was nice to see a good example of Small Yellow Lady's Slipper (Cypripedium parviflorum var. makasin), with small lips (pouches), purple sepals and petals, and distinctly vanilla-scented flowers.  For comparison, there were also individuals of Large Yellow Lady's Slipper (Cypripedium parviflorum var. pubescens) on the site; these had (slightly) larger lips, green (or at least with less purple) sepals and petals, and flowers with no odor. This elegant orchid is known from fens, wet prairies, and open forests in calcareous soils throughout much of the northern half of North America but is of conservation concern in many of the states in which it occurs.

When we arrived back to the field station, the sun was already beginning to fall below the northern Michigan horizon, and I knew I had to get on the road for home soon.  By 10 PM, I was on my way, stopping to sleep at a rest stop for an hour to help me get home safely by 4:00 AM on 28 May.  Another whirlwind, in a way considered one of the dumber things I've done given that I drove 12 hours round trip for 20 hours or so of botanizing, and given that I slept only 10 hours during this 72-hour period.  But as you can see here, and as I hope to show in posts this winter if I ever get caught up on the rest of the year of botanizing, it was defintely worth the trip.