Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  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
Google Dot Maps
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

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

Flora of North America (off site)
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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