Small Round-leaved Orchis (Amerorchis rotundifolia)

Synonym: Orchis rotundifolia

Status: threatened in Wisconsin

HabitatDescription: cold fir-spruce-cedar swamps and bogs, possibly only on calcareous deposits such as marl

Habitat Classification
WI NHI: Northern Wet-Mesic Forest
Curtis: Northern Wet-Mesic Forest
Kotar: NA
Forest Cover: Swamp Conifer; White Cedar; Cedar/Balsam Fir; Black Spruce

Range: Ashland, Door, Florence, Forest, Oconto, Ozaukee, Sawyer, and Sheboygan

Comments:

Phenology: usually flowers from June to late July but quite variable in a given locality

Field Guides:
Britton and Brown (Orchis rotundifolia), p.1:458/p.1:459
Gleason 1963 (Orchis rotundifolia), p.223
Gleason 1991 (Orchis rotundifolia), p.856
Newcomb (Orchis rotundifolia), p.20/p.21
Peterson (Orchis rotundifolia), p.14/p.15
Voss I (Orchis rotundifolia), p.440/p.447