Rabu, 30 Maret 2011

Outwitting the Wily Orchids

Dan, Dan, the orchid man McDowell, my mentor for all things botanical, is fond of saying, "Peter, the neat thing about orchids is they can hide, but they can't run." But knowing this to be true is not always helpful in finding the less showy members of the orchid family.

There are three woodland species of orchids here in Indiana that can neither hide, nor run, during the winter months. The green over-wintering leaves are easy to spot among the decaying leaf litter on the forest floor. Find those leaves now before the green-up, mark their location with a GPS and return later when they are in bloom, and likely to be hidden by closely growing associates.


(1) Aplectrum hyemale
Common name: puttyroot, Adam-and-Eve orchid

(2) Tipularia discolor
Common name: crane-fly orchid

(3) Goodyera pubescens

Common name: downy rattlesnake plantain

Aplectrum hyemale sends up a single leaf in late September which is usually shed when the flower stalk is present in May. It is common to find an abundance of leaves at a winter location only to find a few flowering stalks when you return in the spring.




This is the rarer greenish form of Aplectrum hyemale forma pallidum which grows at a site in LaPorte County.


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Tipularia discolor, like the puttyroot, Aplectrum hyemale, produces a single leaf in September which is absent during flowering. I recently counted 22 leaves of this species at a LaPorte County site in April, but found only one flowering stalk when I returned in August.


Note the purple underside of the leaf of Tipularia discolor.



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Unlike the preceding two species, the strikingly patterned foliage of Goodyera pubescens can be found throughout the year, and is present during flowering in July and August.



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