|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 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.
Stems 1590 cm, generally glabrous
Leaves: basal 536 cm, (ob)lanceolate to widely elliptic, entire to serrate, petioles tomentose; cauline clasping, reduced, generally serrate, glabrous
Inflorescence: heads 315+, in ± narrow clusters; involucre 518 mm diam, hemispheric or bell-shaped; phyllaries overlapping in 45 series, 613 mm, (ob)lanceolate to oblong, (sub)glabrous
Ray flowers 728; ligules 510 mm
Disk flowers 2065; corollas 58 mm
Fruit 2.55.5 mm, 4-angled, glabrous to densely tomentose; pappus 69 mm, tan to brownish
Ecology: Many habitats
Elevation: < 2500 m.
Bioregional distribution: Klamath Ranges, North Coast Ranges, c&s High Sierra Nevada, Tehachapi Mountain Area, s Sacramento Valley, San Francisco Bay Area, Inner South Coast Ranges, South Coast, Great Basin Floristic Province, Mojave Desert
Distribution outside California: to Oregon, Idaho, Utah
Synonyms: Haplopappus r. (Nutt.) Torr
See the CNPS Inventory for information about endangerment and rarity.
Inflorescence generally crowded, spike-like; involucre 58.5 mm, 1216 mm diam; phyllaries herbaceous and yellow-green throughout, acute, sparsely tomentose (at least near base), tip glandular-ciliate, not recurved
Ecology: UNCOMMON. Chaparral, coniferous forests
Elevation: 2001000 m.
Bioregional distribution: nw Klamath Ranges
Distribution outside California: sw Oregon
Synonyms: H. r. subsp. c. (Greene) H.M. Hall