|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Perennial from stout, branched caudex
Stems 1few, ascending to erect, branched to not
Leaves 14(5), generally 13(4)-ternate, lowest scale-like, fibrous, sheathing
Inflorescence: raceme, axillary or terminal
Flower radial; sepals 35, petal-like, early deciduous; petals 410, rarely 0, oblanceolate to spoon-shaped; pistil 1, placentas 2, ovules several
Species in genus: 56 species: temp North America, Eurasia
Etymology: (Greek: ancient name, from wet habitat and similarity to Sambucus leaves)
Fr TOXIC to humans.
Plant 420(30) cm
Leaf: basal blade 24 cm, generally ovate
Flower: petals 57 mm
Ecology: Habitats of sp.
Elevation: 14003600 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Cascade Range, High Sierra Nevada, San Bernardino Mountains, San Jacinto Mountains, n White and Inyo Mountains
Distribution outside California: to Washington, Nevada
Flowering time: JunJul
Horticultural information: WET or IRR, DRN: 1, 2, 7 &SUN: 4, 5, 6, 15, 16, 17.
Leaves generally << internodes; submersed leaves 35-dissected, segments thread-like, petioles generally flat, wide ± throughout; floating or emergent generally 0 or like submersed
Inflorescence: pedicel recurved in fruit
Ecology: Habitats of sp.
Elevation: < 1800 m.
Bioregional distribution: n Cascade Range, Central Coast, n High Sierra Nevada, San Jacinto Mountains, Modoc Plateau
Distribution outside California: to British Columbia, eastern N.America, Mexico
Synonyms: R. subrigidus W.B. Drew
Much like var. capillaceus.
Annual 420(30) cm
Stem decumbent to erect, generally branched below middle; hairs 0sparse
Leaves lanceolate to ovate, generally glabrous; basal and lower cauline petioles 1.58.5 cm, blades 0.62 cm, generally entire; upper cauline leaves generally smaller
Flower: receptacle glabrous; sepals 3, 23 mm; petals 23, 23 mm, ± 1 mm wide
Fruits 9many; cluster conic to ovoid; body 11.5 mm, ± 1 mm wide, ± plump, smooth to finely net-like, back rounded; beak minute
Ecology: Clay soils, vernal pools
Elevation: < 1200 m.
Bioregional distribution: n&c Sierra Nevada Foothills, e Great Central Valley (except s San Joaquin Valley)
Synonyms: R. alveolatus Carter
Other vars. in Chile, Argentine.