|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
Annual, glabrous to hairy
Stem generally branched
Leaves alternate, deeply pinnately lobed to 12-compound; stipules 0
Inflorescence: flowers solitary in axils, peduncled
Flower generally bisexual, radial; sepals 35, free; petals 35, free, white to pink or yellow; stamens 3, 8, or 10, free, generally in 2 whorls; nectary glands at bases of outer stamens; pistils 25, ± free, 1-ovuled, styles fused except sometimes at tip
Fruit: nutlets 15, ovoid to spheric, generally tubercled
Genera in family: 2 genera, 10 species: temp North America
Chromosomes: 2n=10 for all species
Annual, decumbent to erect
Leaf generally 1-odd-pinnately lobed or compound; lobes or leaflets entire to deeply lobed
Flower: sepals 45; petals 45, generally > sepals, tips toothed or jagged; stamens 8 or 10; pistils 45
Fruit: nutlets 15, smooth or tubercled
Species in genus: 9 species: ± coastal w North America
Etymology: (Greek: marsh flower, from habitat)
Reference: [Mason 1952 Univ Calif Publs Bot 25:455512]
Sect. Inflexae merits critical review. Fls spring.
Stem < 30 cm
Leaf < 10 cm; leaflets 59, < 15 mm, linear to ovate, entire to deeply 3-lobed
Flower cup- to bell-shaped; sepals 78 mm; petals 1015 mm, white; stamens 56 mm, anthers 2 mm; style 56 mm
Fruit: nutlets, 34 mm, obovoid, smooth, wrinkled, widely ridged, or sharply tubercled
Ecology: Winter-wet grasslands, woodlands, edges of vernal pools, ephemeral streams
Elevation: < 1800 m.
Bioregional distribution: s North Coast Ranges, Cascade Range Foothills, n&c Sierra Nevada Foothills, n High Sierra Nevada, Great Central Valley.
Herbage sparsely to densely hairy when young
Flower: sepals densely hairy
Fruit widely ridged
Ecology: Winter-wet grasslands, woodlands
Elevation: < 1400 m.
Bioregional distribution: s North Coast Ranges, n&c Sierra Nevada Foothills, Great Central Valley
Horticultural information: TRY.