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Yellowcress - Rorippa alpina
Other Names:
Rorippa curvipes var. alpina
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Native Species Global Rank :
G4?
State Rank :
SNR
C-value :
4
Agency Status USFWS :
USFS :
BLM :
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General Description
Perennial from wet areas, usually glabrous. Basal leaves: petioles mostly 1-2 cm long, blade mostly 1-3.5 cm long, margins usually dentate to pinnatifid, rarely repand. Stem leaves petiolate or subsessile, blade obovate to oblanceolate, smaller distally, margins entire, crenate or repand. Fruiting pedicels ascending to slightly reflexed, straight or curved, mostly 3-6 mm long. Fruits siliques or sometimes silicles, straight or slightly curved, mostly 3-7 x 1.5-2.5 mm, valves glabrous; ovules up to 46 per ovary; style mostly 0.5-1 mm long. Seeds biseriate, yellow-brown, 0.5-0.7 mm (adapted from Al-Shehbaz, 2007, in Flora N. America, Vol. 7).R. curvipes .
Range Comments
ID, WY and MT south to CO and NV (Al-Shehbaz, 2007, in Flora N. Amer., Vol. 7).
Observations in Montana Natural Heritage Program Database
Number of Observations: 1
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
Moist areas, including streamsides, ponds, seeps, 1400-3800 meters (Al-Shehbaz, 2007, in Flora N. Amer., Vol. 7).
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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