Robert W. Freckmann Herbarium


  Listera auriculata Wiegand image
Photographer: Jeff Hapeman           
Family Orchidaceae
Listera auriculata Wiegand
auricled twayblade
Listera: after Martin Lister (1638-1711), an English naturalist
auriculata: having ear-like structures
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Endangered
Plant: erect, perennial, 4"-10" tall forb; stems smooth below, mostly fuzzy above the leaves
Flower: pale green to bluish-green, 6-parted; lip 1/4"-2/5" long, wide base, divided to about 1/4 of its length; inflorescence with up to 20 stalked flowers in a loose, terminal, spike-like cluster (raceme); blooms July-Aug.
Leaf:single pair, opposite, stalkless, near the middle of the stem, round to oval, 3/4"-2 1/3" long and longer than the stalk of the inflorescence
Habitat: wet; bare sands in alder thickets, along streams near Lake Superior
(Glossary)

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

Flora of North America (off site)
Synonyms 
Bifolium auriculatum (Wiegand) Nieuwl.
Neottia auriculata (Wiegand) Szlach.
Ophrys auriculata (Wiegand) House

         
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