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Wild Yellowcress - Rorippa truncata
Other Names:
Rorippa curvipes var. truncata
Native Species
Global Rank:
G5
State Rank:
SNR
C-value:
4
Agency Status
USFWS:
USFS:
BLM:
External Links
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 et al. 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).
Observations in Montana Natural Heritage Program Database
Number of Observations: 2
(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
Ecology
POLLINATORS 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).
Stewardship Responsibility
References
- 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?- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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