Losing Myself

Tuesday, 8 May 2018
8:16 leave house a little later than intended
8:47 arrive at park, shoulder daypack, start hiking
9:04 find orchids, set up, start shooting; reposition tripod several times, swap lenses, try some hand-held shots – the usual. About 15 minutes later, check my phone.

It’s 9:45.  Hmm.  Just a few more shots before heading back.

10 minutes later, check the phone: it’s 10:15.

That’s pretty typical for me when I’m shooting anything, but it’s worse when the subject is orchids.

This is Cypripedium acaule, pink lady’s slipper, a terrestrial orchid native to eastern North America. It ranges from the Appalachian Mountains in the south into most parts of the mid-Atlantic, New England, the upper Midwest, and Canada. In Maryland it seems to be in all the physiographic provinces but we have the most records for it in the piedmont.

It’s endangered in Illinois, unusual in Georgia, commercially exploited/ endangered in Tennessee, and exploitably vulnerable in New York. The fact that it’s exploited is particularly troublesome because, as I’ve written many times and as poachers really ought to know by now, transplanting orchids from the wild is a good way to kill them. They might survive for a little while, but without the correct fungus in the soil, they won’t reproduce and will soon die. The USDA Forest Service has a nice little article with more details.

This is what they looked like eight days earlier. —>

Although not on Maryland’s RTE list, this orchid isn’t common. If you find some, take a moment to lose yourself in the beauty.

Seven Down, Forty-some To Go

Sunday evening I’m on the computer, browsing various internet forums*, and I see a post from someone who’s found some nice flowers in a nearby park. When I read the words “large whorled pogonia,” my heart skips a beat.

 

So first thing Monday morning, plans to go hunting for lady’s slipper orchids are scuttled, and off I go to add another wild orchid to my life list.

 

Isotria verticillata (formerly Pogonia verticillata and Arethusa verticillata) ranges from eastern Texas northeast well into New England. It’s endangered in Florida, Illinois, New Hampshire; threatened in Michigan and Vermont; exploitably vulnerable in New York; and possibly extirpated in Maine. But it’s secure in Maryland, where it can be found in the piedmont and some western parts of the coastal plain.

 

Like most orchids found in the continental US, large whorled pogonia is terrestrial. It likes moist to dry woodland soils, and is pollinated by bees. Also as is typical of our native orchids, because of specialized cultural requirements, it isn’t very common.

I was on the same trail just five days before shooting these pictures, and didn’t see the plants. As you can see from the previous picture, they don’t exactly stand out, but they aren’t hidden, either. On the other hand, here’s a picture of one recently emerged and not yet open. I think it’s likely that five days ago there weren’t any to see.*fun for grammar nerds

More Faroese Wildflowers

Here are a few of the showier, prettier, and more interesting wildflowers I saw in the Faroe Islands. Many of these have a worldwide distribution pattern known as arctic-alpine, which means exactly what you would expect: they are found at high latitudes, and at high elevation at lower latitudes.

Armeria maritima (sea thrift, Plumbaginaceae)
a circumpolar species that likes poor, salty soils; thrives on rocky coasts

 

 

 

Dactylorhiza maculata (heath spotted orchid, Orchidaceae)
common in mountainous areas in Europe; can vary greatly in color from dark pink-purple to almost white

 

 

Dactylorhiza purpurella (northern marsh orchid; Orchidaceae)
these two Dactylorhiza species are difficult to distinguish and it’s quite possible that I’ve mis-identified them; also Dactylorhiza is one of those “problem” genera; found in the UK and Scandanavia

Geranium sylvaticum (wood cranesbill; Geraniaceae)
found in temperate regions throughout Europe; introduced in Quebec and Greenland

 

 

Pinguicula vulgaris (butterwort; Lentibulariaceae)
found in boggy areas in the upper Mid-West, New England, Canada, and northern Europe; the plant’s leaves produce both a sticky substance and enzymes which together trap and digest insects

 

Polygala serpyllifolia (heath milkwort; Polygalaceae)
I can’t find much on where this species is found, other than the British Isles (and of course the Faroes)

 

 

Polygala vulgaris (common milkwort; Polygalaceae) this species has a widespread distribution in Europe and Asia; it’s introduced in Michigan and Oregon

 

 

Salix herbacea (dwarf willow, snowbed willow; Salicaceae)
a subshrub growing to only 2 inches tall, with arctic-alpine distribution in North America and Europe

 

 

Micranthes stellaris (formerly Saxifraga stellaris; starry saxifrage; Saxifragaceae)
this little charmer is found in arctic-alpine areas of Europe, and in Quebec, Labrador and Greenland in North America

 

Silene acaulis (moss campion; Caryophyllaceae)
arctic-alpine distribution, including the Rocky Mountains in the United States

I’ll Be There

Saturday morning: Steve and I are hiking on Sugarloaf Mountain, and I’ve just shown him some downy rattlesnake plantain, almost finished blooming. As we continue walking along, I tell him to watch for something that looks like thin twigs sticking up out of the ground, with little purple-brown flowers all over.

Not three seconds pass before he says “you mean like this?”

I try not to write about the same plants every year, but when it comes to cranefly orchid (Tipularia discolor), I just can’t help myself. Nor can I put into words what makes this plant stand out for me.

 

Maybe it’s the crazy nectar tubes, sometimes almost twice as long as the pedicels.

 

 

Maybe it’s that pearlescent lower lip. Or the purple stripes on the green sepals and petals.

Maybe it’s the overall effect of those twisted, delicate flowers dancing above the ground.

Cranefly is hibernal: the plant’s single leaf emerges from the ground in autumn, grows through the winter and spring, and dies back in early summer. A leafless peduncle emerges a few weeks later (around early July in the Maryland Piedmont), and the flowers open roughly three weeks later.

Early morning is a good time to shoot them.

Two Leaves

Thursday, May 18: one more trip to Rachel Carson Conservation Park to find and photograph the elusive large twayblade. Thanks to detailed directions from a friend, I found a nice group of the plants, about half of which were in bloom.

Also know as purple twayblade, brown wide-lip orchid, and mauve sleekwort, Liparis liliifolia is one of our native orchids. The two large basal leaves stand a few inches tall, while the flowering stem (a raceme) stands up to about a foot tall and produces as many as thirty flowers.

The lowest flowers open first. A colony of large twayblade will bloom for about two to three weeks.

 

All orchid flowers have three sepals and three petals, although in some species these parts are so highly modified they may not be recognizable as such. In large twayblade, the lowest petal is modified into a wide labellum (lip); the two lateral petals are very narrow and droop down inconspicuously.


You can see the two lower sepals through the labellum, which is so thin it’s actually translucent.

Large twayblade can be found in the Mid-West, Mid-Atlantic, New England, and northernmost parts of the South. It’s threatened in Massachusetts and Vermont, and endangered in Connecticut, New York, and Rhode Island. In Maryland it’s listed as S2S3/state rare.

Look for it in rich, moist woodlands. It should still be blooming in the Maryland piedmont. The purple/brown colors of the petals and pedicels make for good camouflage against the leaf litter, but the distinctive pair of basal leaves stands out.

 

“Tway” is an obsolete word meaning “two”.

Orchids in the Maryland Piedmont

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Aplectrum hyemale
Puttyroot or Adam-and-Eve is a hibernal perennial: a single leaf grows from a corm (an underground plant stem) in autumn, taking advantage of winter sunlight coming through the deciduous trees under which it grows, and then withers in spring. If conditions are right, it will then send up a flowering stem. In the Maryland piedmont that will be sometime in mid to late May. It’s native to eastern North America, and is on six northeastern states’ conservation lists (as endangered, threatened, etc.).
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seedpods

 

 

 


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Galearis spectabilis
Showy orchis has a similar range to puttyroot, and grows in similar habitats (rich, moist soils in deciduous woodlands). It’s not a hibernal, though: the two basal leaves of a mature plant appear in spring and persist until mid autumn (young plants have only one leaf). A single flowering raceme produces up to a dozen flowers; look for them in starting in mid April in the piedmont. The flowers are purple and white, but there is a form with all-white blossoms, as shown here. Showy orchis is on five states’ conservation lists.

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Cypripedium acaule
Pink lady’s slipper or moccasin flower grows in a wider range of habitats than the previous two orchids, including mixed deciduous-coniferous woodlands, and has a more northern and eastern range that includes the Appalachians, New England, the upper midwest, and parts of Canada. It’s listed in four states. Like showy orchis, the plant consists of two basal leaves and a single flowering stem, but this stem produces only one flower. It’s a spectacular one, though. Look for it in early to mid May in the piedmont.

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Goodyera pubescens
Downy rattlesnake plantain is yet another native of eastern North American woodlands. This orchid likes drier, more acidic soils than the others. The plant has a basal rosette of white-striped evergreen leaves, and produces a single flowering spike in mid to late July. The spike can be more than a foot tall, with dozens of flowers crowded along the topmost portion.
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Tipularia discolor
Like puttyroot, cranefly orchid has a single hibernal leaf that withers before the single flowering raceme emerges. This usually happens in mid to late July, and the flowers open roughly two weeks later. There can be four dozen or more tiny flowers on the spike. This is also an eastern North America native, but it’s found more to the south and west than the others. It’s listed in five states. Cranefly orchid grows in moist soils in deciduous and mixed deciduous-coniferous woodlands. At first glance the flowers seem to be bilaterally symmetrical, but they are actually a little torqued.
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The Orchidaceae

Few plants inspire passion like orchids do: we’ve been cultivating them for 3,000 years, despite the fact that they offer us little by way of food, clothing, medicine, or anything else people grow plants for.  In Europe orchid cultivation began about the time the Dutch tulip craze was waning, and now there are over 100,000 known cultivars and hybrids.

The number of species is impressive, too, estimated to be around 28,000 (some experts believe there may be as many as 35,000), in over 700 genera. This makes the Orchidaceae either the largest or second largest plant family (the other being Asteraceae), in terms of number of species. In both families the number of species is constantly changing, in accordance with both new discoveries and phylogenetic research.

In North America, there are 310 species of native orchids, making the Orchidaceae the 13th largest family on this continent*.

In Maryland, though, the news is sad. Although there are records for about 44 species (29 in the piedmont), of these…

  • 9 have been extirpated
  • 1 is a waif
  • 1 is alien
  • 12 are listed as endangered and/or S1 (highly state rare)
  • 1 is S1/S2 (highly state rare)
  • 4 are threatened and/or S2 (state rare)
  • 1 is S2/S3 (state rare)
  • 4 are vulnerable and/or S3 (watchlist)**

Orchids grow in almost every habitat, except in true deserts, open water, and glaciers***. Most of the species grow in tropical rainforests, but the family is cosmopolitan: orchids are found on every continent (and Oceania) except Antarctica.

They can be terrestrial or epiphytic. An epiphyte is a plant that grows on another plant for support, without causing the other plant harm (therefore not the same as a parasite). The epiphytic orchids have aerial roots that absorb water and nutrients from the air. They are mostly found in the tropics, while the terrestrial orchids are mostly found at higher lattitudes.

Terrestrial orchids grow with certain soil fungi in mutually beneficial associations termed mycorrhizae (singluar mycorrhiza). Because of this, our native terrestrial orchids are extremely hard to grow in the garden; if the correct fungi are not present in the soil, the orchid plants will likely die in a year or two, and seeds will not germinate.

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Orchids usually bear flowers on a spike, raceme, or panicle, or sometimes singly. A spike is a stem with single flowers along it (right); a raceme is a spike whose flowers have pedicels (below); and a panicle is a branched raceme.

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Although there is a huge variety of form, orchid flowers are easily recognized. They always have three sepals, which can be single or partly fused, and are either green or petal-colored; and three petals. Of the petals, the two lateral ones are usually identical, while the center one is formed into a lip or pouch. The flowers are usually bilaterally symmetrical.

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As for economic value, it’s entirely about the passion for ornamental flowers, with one exception: Vanilla planifolia, the only orchid species to produce an edible fruit. There are a few orchid species that produce edible tubers, but these have never been grown commercially.

next time: orchids in the Maryland piedmont


*BONAP
**Maryland Biodiversity Project
***Encyclopedia of Life