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Montana Field Guide

Montana Field Guides

Dense-flower Pepper-grass - Lepidium densiflorum


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

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General Description
Annual or biennial. Stems erect, 8–50 cm, usually branched above. Basal leaves petiolate, narrowly oblanceolate with sinuate to shallowly lobed margins, withering early. Stem leaves sessile. Vestiture of sparse, short, simple hairs. Flowers white; petals ca. 1 mm long or lacking; stamens 2. Fruit broadly obovate, glabrous to pubescent, 2.5–3.5 mm long, notched; style lacking; pedicels spreading, glabrous or puberulent, 1.5–3.5 mm long. (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

In Montana we have varieties densiflorum, pubicarpum (A. Nelson) Thell., and ramosum (A. Nelson) Thell.

Species Range
Present
 


Range Comments
Widespread in temperate N. America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 54

(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
Disturbed soil of fields, grasslands, steppe, open forest; 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:
Dense-flower Pepper-grass — Lepidium densiflorum.  Montana Field Guide.  .  Retrieved on , from