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Modoc County Yellowcress - Rorippa tenerrima
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Native Species Global Rank :
G5
State Rank :
SNR
C-value :
4
Agency Status USFWS :
USFS :
BLM :
External Links
General Description
Glabrous annual from a thickened taproot. Stems prostrate to ascending, 3–20 cm long, branched. Leaves basal and cauline; the basal withering early; stem leaves oblanceolate, 1–8 cm long, pinnately lobed with sinuate margins, the terminal lobe largest. Petals yellow, 0.5–0.8 mm long, shorter than the sepals. Fruit a lanceolate silique, 3–7 × 1–1.5 mm, papillose (use 20X); style 0.2–0.6 mm long; pedicels ascending, 1–3 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX ).
Range Comments
BC to SK, south to CA, NM, TX, MO and Mexico (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX ).
Observations in Montana Natural Heritage Program Database
Number of Observations: 3
(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).
References
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