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Montana Field Guide

Montana Field Guides

Spreading Yellowcress - Rorippa sinuata


Global Rank: G5
State Rank: SNR

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

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General Description
Stems ascending, 10–30 cm. Leaves all cauline, 2–6 cm long, oblanceolate, pinnately lobed and dentate, the apical lobe similar to the lateral, petiolate to sessile above. Vestiture of sparse, globose hairs on stem and lower leaf surfaces. Petals yellow, 3–5 mm long. Fruit an oblong, slightly curved silicle 4–7 × 1.5–2.5 mm, glabrous; style 0.9–1.5 mm long; pedicels spreading, 4–9 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
BC to ON south to CA, NM, AK and LA (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Moist to wet, sandy or gravelly soil along streams, ponds, lakes; 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:
Spreading Yellowcress — Rorippa sinuata.  Montana Field Guide.  .  Retrieved on , from