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Montana Field Guide

Montana Field Guides

Curve-pod Yellowcress - Rorippa curvisiliqua

Native Species

Global Rank: G5
State Rank: SNR
C-value: 4

Agency Status


External Links

General Description
Taprooted annual to biennial. Stems prostrate to ascending, 3–30 cm long, branched with racemes terminal and from upper leaf axils. Leaves basal and cauline; the basal withering early; stem leaves oblanceolate, 1–5 cm long, pinnately lobed to deeply dentate, the terminal lobe largest. Vestiture of sparse, recurved hair on the stem. Petals yellow, 0.6–1.1 mm long, shorter than the sepals. Fruit a linear silique, 7–17 mm long, 0.8–1.5 mm wide, usually hispid on the sutures; style 0.1–0.4 mm long; pedicels spreading to ascending, 1–3 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
AK south to CA, NV and WY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 10

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Mud along shores of lakes, ponds, streams; montane, subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).)

The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus rufocinctus (Thorp et al. 1983).

  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
  • Web Search Engines for Articles on "Curve-pod Yellowcress"
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Citation for data on this website:
Curve-pod Yellowcress — Rorippa curvisiliqua.  Montana Field Guide.  .  Retrieved on , from