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Montana Field Guide

Montana Field Guides

Clasping Pepper-grass - Lepidium perfoliatum

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 0

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General Description
Taprooted annual. Stems erect, 10–45 cm, simple. Basal leaves petiolate, oblanceolate, 1–12 cm long, 2–3-times divided into linear segments. Stem leaves 3–30 mm long, broadly ovate, cordate to perfoliate with entire margins, becoming sessile. Vestiture: basal leaves with long, simple hair or glabrous; glabrous above. Flowers yellow; petals 1–1.5 mm long; stamens 6. Fruit ovate, glabrous, 3–4.5 mm long, shallowly notched; style 0.2–0.4; pedicels ascending, glabrous, 3–5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
Introduced throughout much of temperate N. America; native to Eurasia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 18

(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, vernally moist soil of grasslands, steppe, roadsides and around saline or alkaline wetlands; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Clasping Pepper-grass — Lepidium perfoliatum.  Montana Field Guide.  .  Retrieved on , from