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Montana Field Guide

Montana Field Guides

Bicolor Biscuitroot - Lomatium bicolor

Potential Species of Concern

Global Rank: G4
State Rank: S3S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 7

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General Description
Plants subacaulescent from an elongate thickened root and simple or branched crown. Herbage minutely scabrous. Leaf blades ovate in outline; bipinnate with lobed leaflets; ultimate segments ovate to oblong, crowded, 2–5 mm long. Umbels: peduncles ascending, 10–30 cm; rays unequal, 1–4 cm long; umbellets compact; involucel bracts lance-linear, 1–3 mm long, scarious-margined. Flowers yellow. Mericarps elliptic, glabrous, 6–8 mm long; marginal wings 0.5–1 mm wide; oil tubes prominent, 1 per interval (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Endemic to Beaverhead and Madison counties and adjacent WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 1

(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 soil of grasslands, sagebrush steppe, talus slopes, woodlands, often on limestone, often with mountain mahogany; montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Bicolor Biscuitroot — Lomatium bicolor.  Montana Field Guide.  .  Retrieved on , from