Isoetes tenella Léman
spiny-spore quillwort (bristle-like quillwort)
Isoetaceae (Quillwort family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #14105)


Map

E-Flora BC Static Map

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

Species Information

General:
Perennial aquatic plants from a short 2-lobed rootstock.
Leaves:
Deciduous, flaccid, 5-25 cm long.

SourceThe Illustrated Flora of British Columbia

Illustration

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.

Ecology

Ecological Framework for Isoetes tenella

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
0 0 0
Slope Gradient (%)
0 0 0

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

0
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 6 6
Modal Nutrient Regime
Class
E
# of field plots
 species was recorded in:
15
Modal BEC Zone Class
CWH

All BEC Zones (# of stations/zone) species was recorded in

CWH(15)

Habitat and Range

Lakes in the lowland to subalpine zones; infrequent throughout BC; circumpolar, N to AK, YT and NT, E to NF and S to NJ, MI, WI, MT, UT and CA; Eurasia.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Isoetes braunii Durieu
Isoetes echinospora Dur.
Isoetes echinospora subsp. asiatica (Makino) A. L÷ve
Isoetes echinospora subsp. muricata (Durieu) A. L÷ve & D. L÷ve
Isoetes echinospora var. asiatica Makino
Isoetes echinospora var. braunii (Durieu) Engelm.
Isoetes echinospora var. hesperia (C.F. Reed) A. L÷ve
Isoetes echinospora var. muricata (Durieu) Engelm.
Isoetes echinospora var. robusta Engelm.
Isoetes echinospora var. savilei B. Boivin
Isoetes muricata Durieu
Isoetes muricata var. braunii (Durieu) C.F. Reed
Isoetes muricata var. hesperia C.F. Reed
Isoetes setacea Lam. p.p.
Isoetes setacea subsp. muricata (Durieu) Holub