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Montana Field Guide

Montana Field Guides

Spiny-spore Quillwort - Isoetes echinospora
Other Names:  Isoetes tenella

Status Under Review

Global Rank: G5
State Rank: S2?
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 9

External Links






State Rank Reason (see State Rank above)
5 collections at MONTU from western Montana.
 
General Description
Plants aquatic. Leaves 6–15 cm long with a blunt tip. Sporangia 3–6 mm long. Megaspores 0.4–0.6 mm wide (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
In MT in Flathead, Lake, Missoula and Rivalli counties; Circumboreal, south to CA, UT, CO, OH, NJ (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Unconsolidated mud in shallow water of lakes and sloughs; valleys to lower subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Spiny-spore Quillwort — Isoetes echinospora.  Montana Field Guide.  .  Retrieved on , from