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Montana Animal Field Guide

Montana Field Guides

Nineleaf Biscuitroot - Lomatium triternatum


Global Rank: G5
State Rank: S5

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

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General Description
Plants subacaulescent from a slender taproot and usually simple crown. Herbage: puberulent. Leaf blades obovate in outline, 4–20 cm long, triternate or tripinnate; ultimate segments well-separated, linear (rarely oblong), 1–12 cm long. Umbels: peduncles ascending, 2–40 cm; rays unequal, 1–7 cm long; involucel bracts few, linear, 2–4 mm long. Flowers yellow Mericarps lanceolate to narrowly elliptic, 7–15 mm long, glabrous; marginal wings 1–1.5 mm wide; oil tubes solitary in the intervals (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana plants are varieties triternatum, anomalum (M.E. Jones ex. J.M. Coult. & Rose) Mathias, and platycarpum (Torr.) B. Boivin.

Range Comments
BC, AB south to CA and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 146

(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
Grasslands, sagebrush steppe, meadows, open forest, pine woodlands; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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