|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 < 25 cm
Leaf < 8 cm; leaflets 410, < 1 cm, linear to ovate, entire, toothed, or lobed
Flower urn-, cup-, or bell-shaped; sepals 410 mm; petals 4.510 mm, < to ± > sepals, white; stamens 2.58.5 mm, anthers 0.41.5 mm; style 1.54 mm
Fruit: nutlets, 15, 34.5 mm, obovoid, tubercles < 1 mm or 0
Ecology: UNCOMMON. Moist meadows, vernal pools
Elevation: 10400 m.
Bioregional distribution: Klamath Ranges, Inner North Coast Ranges (near Kelseyville, Lake Co.), Cascade Range, Sacramento Valley.In CA nutlets fall together, with calyx.
See the CNPS Inventory for information about endangerment and rarity.
Flower cup-shaped; sepals 7.510 mm; petals 810 mm; filaments 37 mm, anthers ± 11.5 mm, dehiscing outward; style 3.54 mm
Fruit: nutlets, 35, papillate, generally with wide-conic tubercles
Ecology: Vernal pool edges
Elevation: < 100 m.
Bioregional distribution: Sacramento Valley (Butte Co.).