Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Cous Biscuitroot - Lomatium cous


Global Rank: G5
State Rank: S5

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

External Links






 
General Description
Plants subacaulescent from a tuberous-thickened root and simple to branched crown. Herbage glabrous. Leaf blades ovate in outline; ca. tripinnate; ultimate segments narrowly elliptic, crowded 2–5 mm long. Umbels: peduncles prostrate to ascending, 2–20 cm; rays becoming unequal, 1–6 cm long; involucel bracts 1–3 mm long, obovate to elliptic, scarious-margined, united below and on 1 side of the compact umbellet. Flowers yellow. Mericarps elliptic, glabrous, 5–9 mm long; marginal wings 0.5–1 mm wide; oil tubes inconspicuous, 1 to 4 per interval (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
AB, SK to OR, ID, UT and WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 88

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Stony, often shallow soil of grasslands, fellfields at all elevations, most common at the lowest and highest elevations (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
Login Logout
Citation for data on this website:
Cous Biscuitroot — Lomatium cous.  Montana Field Guide.  .  Retrieved on , from