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Montana Field Guide

Montana Field Guides

Flatspine Stickseed - Lappula occidentalis
Other Names:  Lappula redowskii

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Global Rank: G5
State Rank: SNR

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

External Links

 
General Description
Stems simple or branched, 5–40 cm. Leaves 1–6 cm long; Flowers: calyx 1–2 mm long; corolla blue or white, 3–4 mm long, 2–3 mm across the limb. Nutlet body ca. 2 mm long; marginal prickles in 1 row, well-separated (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Leisca (2012) treats this species as L. redowskii with two varieties in Montana: variety redowskii and variety cupulata (A. Gray) M.E. Jones.

Species Range
Present
 


Range Comments
AK to MB south to CA, TX and MO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 81

(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
Sparsely-vegetated, often disturbed soil of grasslands, sagebrush steppe, woodlands, open forest, fields, roadsides; plains, 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:
Flatspine Stickseed — Lappula occidentalis.  Montana Field Guide.  .  Retrieved on , from