Robert W. Freckmann Herbarium


  Listera convallarioides (Sw.) Elliott image
Photographer: R.K. Kupfer           

Jeff Hapeman

R.K. Kupfer
Family Orchidaceae
Listera convallarioides (Sw.) Elliott
broad-leaved twayblade
Listera: after Martin Lister (1638-1711), an English naturalist
convallarioides: resembling genus Convallaria, lily-of-the-valley, from the Latin convallis, "a valley"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
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Status: Threatened
Plant: erect, perennial, 4"-12" tall forb; stems smooth below, mostly fuzzy above the leaves; succulent
Flower: greenish, 6-parted; lip 1/4"-2/5" long, translucent, narrow base, tip divided into 2 shallow, rounded lobes; inflorescence a 3/4"-4 1/2" loose, terminal, spike-like cluster (raceme) with up to 20 stalked flowers; blooms July-Aug.
Leaf:single pair, opposite, stalkless, near the middle of the stem, broadly oval 1"-2 1/4" long
Habitat: deep shade; moist; ravines in mixed or coniferous woods; in rich soil
(Glossary)

More Information Natural Communities Herbarium Specimens
All Listera list Google- Images or Text

Flora of North America (off site)
Synonyms 
Bifolium convallarioides (Sw.) Nieuwl.
Diphryllum convallarioides (Sw.) Kuntze
Epipactis convallarioides Sw.
Listera eschscholziana Cham.
Ophrys convallarioides (Sw.) W.Wight ex House

         
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