Isoetes lacustris Linnaeus. Common name: Lake Quillwort. Phenology: Jul-Sep. Habitat: Submerged in lakes and permanent streams. Distribution: Apparently extirpated from the historic locality in VA.
Origin/Endemic status: Native
Taxonomy Comments: A decaploid species (2n=110).
Synonymy ⓘ: = AqW, C, FNA2, K1, K3, K4, NY, Va; > Isoetes macrospora – F, G, W
Links to other floras: = Isoetes lacustris - FNA2
Wetland Indicator Status:
- Eastern Mountains and Piedmont: OBL
- Midwest: OBL
- Northcentral & Northeast: OBL
Heliophily ⓘ: 8
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