TREATMENT FROM THE JEPSON MANUAL (1993) |
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©Copyright 1993 by the Regents of the University of California
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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.
Perennial from woody taproot
Stems 1many, decumbent to erect, generally red-tinged
Leaves alternate, simple, glabrous to tomentose or glandular; basal petioled; cauline generally clasping, reduced
Inflorescence: heads generally radiate, 1many; involucre hemispheric to bell-shaped; phyllaries in 26 ± graduated series, herbaceous
Ray flowers 1080; corollas 235 mm, yellow
Disk flowers 20100+; corollas 515 mm, cylindric to funnel-shaped, yellow
Fruit 34-angled, generally hairy; pappus bristles 1560, generally rigid, unequal
Species in genus: ± 10 species: w North America
Etymology: (Greek: reddish pappus)
Reference: [Mayes 1976 PhD Univ TX]
Formerly included in Haplopappus.
Native |
Plant generally ± (sub)glabrous (densely glandular upward)
Stems 1550 cm
Leaves ± (ob)lanceolate, sometimes glandular; basal petioled, 630 cm, dentate; cauline sessile, reduced
Inflorescence: heads 425, in flat-topped clusters; involucre 922 mm wide, hemispheric; phyllaries overlapping in 34 series, 611 mm, unequal, ± lanceolate
Ray flowers 1840; ligules 612 mm
Disk flowers many; corollas 57 mm
Fruit ± 4 mm, 4-angled, silky; pappus ± 57 mm, tan
Ecology: Alkaline meadows, marsh edges, open places
Elevation: 13002800 m.
Bioregional distribution: Modoc Plateau, n East of Sierra Nevada
Distribution outside California: to Oregon, Idaho, south-central Canada, c US
Synonyms: Haplopappus l. (Hook.) Torr. & A. Gray
Variable; needs study.