Rorippa palustris (Yellow Cress)

5/8/04 Green Valley Falls Trail, Cuyamaca Rancho State Park, San Diego County, CA

LIFE LIST NOTES:

COMMON NAME: Yellow Cress, Alkali Pepperweed

SPECIES: Rorippa palustris

FAMILY: Brassicaceae (Mustard Family)

LIFE LIST DATE: 5/8/2004

LOCATION: Green Valley Falls Trail, Cuyamaca Rancho State Park, San Diego County, CA 

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Treatment from The Jepson Manual (1993):

Annual, biennial, short-lived perennial herb, ± erect, with 1 dominant stem from base

Stem > 3 mm diam; branches 0 or ± from base

Leaves: basal and lower cauline short-petioled to sessile, ± clasping stem or not, 5–20(30) cm, oblong to oblanceolate, irregularly dentate to deeply pinnately lobed

Flower: petals 1–2.5(3.5) mm, widely spoon-shaped, yellow

Fruit generally > 2 mm wide, straight to ± upcurved; pedicel spreading to ascending, 2–14 mm; style 0.2–1 mm, abruptly attached to fruit tip

Seed 0.5–1 mm, widely reniform

Ecology: Generally wet areas

Elevation: < 2000 m.  

Bioregional distribution: California 

Distribution outside California: temperate N.America, Eurasia
10 vars. total.