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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  Platanthera clavellata (Michx.) Luer image
Photographer: Robert W. Freckmann           

Jeff Hapeman

Kenneth I. Lange

Merel R. Black
Family Orchidaceae
Platanthera clavellata (Michx.) Luer
club-spur orchid, green woodland orchid, small green fringed orchid
Platanthera: from the Greek for "flat" and "flower," hence "wide or flat anthered"
clavellata: clava for "knotty stick or club;" club-like
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 4"-16" tall forb
Flower: white to yellowish, 6-parted, 1/8"-1/3" wide, twisting along one side of its stalk, spur on the side, lips not parted or fringed but with 3 shallow lobes on the tip; inflorescence 3/4"- 2 1/3" loosely-open, spike-like cluster (raceme) with 5-15 flowers; blooms July-Aug.
Leaf:one large leaf near or just below middle of the stem and several much smaller, upper leaves
Habitat: bogs, often in wet ditches; in acidic soil

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

Flora of North America (off site)
Denslovia clavellata (Michx.) Rydb.
Gymnadeniopsis clavellata (Michx.) Rydb.
Habenaria clavellata (Michx.) Spreng.
Habenaria clavellata (Michx.) Spreng. var. ophioglossoides Fernald
Habenaria clavellata (Michx.) Spreng. var. wrightii Olive
Orchis clavellata Michx.

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