TREATMENT FROM THE JEPSON MANUAL (1993) |
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©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
Annual, perennial herb, shrubs, trees, generally stellate-hairy; juice sticky; inner bark tough, fibrous
Leaves alternate, simple, petioled; blade generally palmately veined or lobed, stipules present
Inflorescence often leafy; whorl or involucre of bractlets often subtending calyx
Flower generally bisexual, radial; calyx lobes 5, margins abutting in bud; petals 5, free (fused at base to filament tube, so falling together); stamens many, filaments fused into a tube surrounding style, tube fused in turn to petal bases; pistil 1, ovary superior, chambers generally 5 or more, style branches, stigmas generally 1 or 2 X as many as chambers
Fruit of 5many disk- or wedge-shaped segments, loculicidal capsule, or berry
Genera in family: 100 genera, 2000 species: worldwide, especially warm regions; some cultivated (e.g., Abelmoschus , okra; Alcea ; Gossypium , cotton; Hibiscus , Malvaviscus )
Recent taxonomic note: Recently treated to include Sterculiaceae [Angiosperm phylogeny Group 1998 Ann Missouri Bot Gard 85:531553; Alverson et al. 1999 Amer J Bot 86:14741486; Bayer et al. 1999 Bot J Linn Soc 129:267303]
Mature fruit important for identification.
Perennial from woody caudex, stellate-hairy
Stem erect, branched, 620 dm
Leaf: blade generally 37-lobed
Inflorescence: flowers generally 13 in upper axils (stem tip appearing as an interrupted spike); bractlets subtending calyx 3, free, linear to lanceolate, persistent
Flower 2.56 cm diam; petals white to rose-purple; stigmas head-like
Fruit: segments generally 1015, 610 mm, generally > calyx, ± oblong, ± bur-like, dehiscent except for lower inside margin, attached to fruit axis by strong fiber; top rounded; side walls thin, smooth, glabrous; outer surface bristly and stellate
Seeds 24 per segment, puberulent
Species in genus: 7 species: w North America
Etymology: (Greek: derivation uncertain)
Reference: [Wiggins 1936 Contr Dudley Herb 1:213229]
Native |
Stem 1020 dm; finely stellate-hairy
Leaf: petiole 514 cm, slender; stipules 610 mm; blade 820 cm, deeply palmately 57-lobed, upper surface glabrous, lower surface canescent, base truncate to cordate
Inflorescence sometimes appearing as a crowded raceme; bractlets 1014 mm
Flower: calyx 810 mm; petals 23 cm, rose-purple
Seeds 23 per fruit segment
Ecology: UNCOMMON. Conifer forests, streamsides
Elevation: 5002000 m.
Bioregional distribution: nw Klamath Ranges (Humboldt, Del Norte cos.)
Distribution outside California: sw Oregon
Horticultural information: TRY.