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. |
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Annual to tree
Leaves basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1many per head
Flowers bisexual, unisexual, or sterile, ± small, of several types; calyx 0 or modified into pappus of bristles, scales, or awns, which is generally persistent in fruit; corolla radial or bilateral (rarely 0), lobes generally (0)45; stamens 45, anthers generally fused into cylinder around style, often appendaged at tips, bases, or both, filaments generally free, generally attached to corolla near throat; pistil 1, ovary inferior, 1-chambered, 1-seeded, style 1, branches 2, generally hair-tufted at tip, stigmas 2, generally on inside of style branches
Fruit: achene, cylindric to ovoid, generally deciduous with pappus attached
Genera in family: ± 1300 genera, 21,000 species (largest family of dicots): worldwide. Largest family in CA. Also see tribal key to CA genera: Strother 1997 Madroño 44(1):128. See glossary p. 25 for illustrations of general family characteristics.
Annual, perennial herb
Stems slender; base ± leafy
Leaves alternate, reduced upward; lower leaves long-petioled; blades wide, thin
Inflorescence: heads small, disciform, in open panicle-like cymes; involucre inconspicuous; phyllaries in 12 series, ± equal, reflexed in fruit, deciduous; receptacle convex, naked
Pistillate flowers few in 1 series; corolla deeply 45-lobed, white, soon deciduous
Disk flowers few, staminate, ± persistent; corolla cylindric, white; anther bases sagittate, tips narrowly triangular; style undivided
Fruit club-shaped to obovoid, weakly veined, prominently stalked-glandular; pappus 0
Species in genus: 6 species: w North America, C.Am, s South America, e Asia
Etymology: (Greek: gland stem)
Native |
Perennial 310 dm, generally ± erect, openly branched, ± tomentose below, stalked-glandular above
Leaves at base; petiole ± winged; blade 325 cm, ± triangular to ovate, base cordate or hastate, subentire to shallowly lobed, white-tomentose below, glabrous above
Inflorescence: phyllaries 12.5 mm, ovate
Pistillate flowers 37; corollas 0.51 mm
Disk flowers 310; corollas 1.52 mm
Fruit 58 mm, club-shaped
Chromosomes: 2n=46
Ecology: Generally in shade, woods, forests
Elevation: < 2000 m.
Bioregional distribution: Northwestern California, Cascade Range, Sierra Nevada, nw Central Western California
Distribution outside California: to British Columbia, north-central US