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Montana Field Guide

Montana Field Guides

Wall-cress - Arabidopsis thaliana

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

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General Description
Annual. Stems simple or branched, 10–30 cm. Vestiture: simple on the stems; simple and branched on the leaves. Basal leaves petiolate, oblong to spatulate, 5–25 mm long; margins entire to remotely dentate. Stem leaves narrowly oblong to linear. Flowers white; petals 2–3 mm long. Fruit 8–15 × 0.5–1 mm (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Habitat
Sparsely vegetated soil of grasslands, sagebrush steppe, open forest, roadsides; 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:
Wall-cress — Arabidopsis thaliana.  Montana Field Guide.  .  Retrieved on , from