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Montana Field Guide

Montana Field Guides

Wild Yellowcress - Rorippa truncata
Other Names:  Rorippa curvipes var. truncata


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

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General Description
Taprooted annual to short-lived perennial. Stems prostrate to ascending, 5–20 cm long, branched with racemes terminal and from upper leaf axils. Leaves all cauline, oblanceolate, 2–6 cm long, crenate-dentate to pinnately lobed, the terminal lobe largest. Vestiture of sparse simple hairs or glabrous. Petals yellow, 0.5–1 mm long, shorter than the sepals. Fruits linear-oblong siliques, 4–9 × 1.5–2.4 mm, glabrous; styles 0.2–0.5 mm long; pedicels spreading, 1–5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Found from California to Washington, east to Saskatchewan, North Dakota, and Missouri and south to Texas and northern Mexico (Rollins 1993).

Habitat
Mud around ponds, rivers, lakes; plains, valleys to subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Wild Yellowcress — Rorippa truncata.  Montana Field Guide.  .  Retrieved on , from