Isoetes lacustris Linnaeus. Lake Quillwort. Phen: Jul-Sep. Hab: Submerged in lakes and permanent streams. Dist: 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
Wetland Indicator Status:
Heliophily: 8
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