This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants.
|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press
|The second edition of The Jepson Manual (2012) is available from the University of California Press|
|See also the Jepson eFlora, which parallels the Second Edition|
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, e 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.
|YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).|