Isoetes maritima Underw.
coastal quillwort (maritime quillwort)
Isoetaceae (Quillwort family)

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #14585)


E-Flora BC Static Map

Distribution of Isoetes maritima
Click here to view the full interactive map and legend

Species Information

Perennial aquatic or semiterrestrial plants from a short, 2-lobed rootstock.
Deciduous in winter, pliant or stiff, 5-20 cm long.

SourceThe Illustrated Flora of British Columbia


If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and Range

Lake margins and shallow water in the lowland and montane zones; frequent in coastal BC, rare in SC BC; amphiberingian, N to AK and S to WA; E Asia (Bering Island).

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Isoetes beringensis
Isoetes echinospora subsp. maritima (Underw.) A. Löve
Isoetes echinospora var. maritima (Underw.) A.A. Eaton
Isoetes macounii
Isoetes muricata subsp. maritima (Underw.) Hultén