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 or shrub, generally resinous
Stems < 2.5 m, leafy
Leaves generally sessile or short-petioled
Inflorescence: heads radiate or discoid; involucres obconic to bell-shaped; phyllaries in several overlapping series, linear to oblanceolate, generally recurved
Ray flowers 025; corollas < 9 mm, yellow
Disk flowers 460; corollas 410 mm, gradually flared from middle
Fruit 110 mm, 45-angled; pappus of 2060 bristles, 2.512 mm, white to reddish brown
Species in genus: 13 species: w North America
Etymology: (Barclay Hazard, 19th Century CA botanist)
Reference: [Clark 1979 Madroño 26:105127]
Native |
Perennial or subshrub 25 dm, glabrous to scabrous-glandular, resinous
Leaves 2550 mm, widely oblong to oblanceolate, acute, serrate
Inflorescence: heads radiate or discoid; involucre 812 mm wide, bell-shaped; phyllaries grading into leaves, 512 mm, linear-lanceolate, acute, sometimes recurved
Ray flowers 0 or 518
Disk flowers 1530
Fruit 510 mm, glabrous, 5-angled; pappus 710 mm, brownish
Chromosomes: 2n=8
Ecology: Open coniferous forest
Elevation: 10003500 m.
Bioregional distribution: Northwestern California, Sierra Nevada
Distribution outside California: Oregon
Synonyms: Haplopappus w. A. Gray
Native |
Ray flowers 0
Fruit < 10 mm
Ecology: Habitat of sp.
Elevation: 10002500 m.
Bioregional distribution: Northwestern California
Distribution outside California: Oregon
Synonyms: Haplopappus w. subsp. d. (J.T. Howell) D.D. Keck