This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants.
|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press
|The second edition of The Jepson Manual (2012) is available from the University of California Press|
|See also the Jepson eFlora, which parallels the Second Edition|
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 or perennial herb, generally densely glandular, aromatic
Stems 1several, generally simple below, ± branched above
Leaves generally opposite below, alternate above, generally linear to lanceolate, entire to slightly toothed
Inflorescence: heads generally radiate, generally peduncled, fewmany; phyllaries generally 120, free, enclosing (and falling with) ray achenes; receptacle ± flat, generally glabrous; chaff scales generally ± fused, in ring between ray and disk flowers
Ray flowers generally 120, sometimes minute; ligules 23-lobed, generally yellow
Disk flowers 1many, sometimes staminate; corollas yellow or maroon; anther tips triangular-ovate; style tips linear to oblong, acute, bristly
Fruit club-shaped or obovoid; ray achenes compressed, thickened, or 3-angled (1 angle toward center of head), ridged, sometimes beaked; pappus 0 or of short scales; disk achenes ± symmetric; pappus 0 or of 410 scales or bristles
Species in genus: 21 species: w North America, sw South America
Recent taxonomic note: *See revised taxonomy of Baldwin 1999 Novon 9:462471.
Etymology: (Chilean name)
Reference: [Nelson & Nelson 1980 Brittonia 32:323325]
Perennial 512 dm, strongly scented
Stems ± bristly below; upper branches densely stalked-glandular; glands dark brown to black
Leaves 1030 cm, opposite well up stem, fused at base, bristly; upper alternate, often much reduced
Inflorescence: heads few, long-peduncled, in rounded or flat-topped clusters; involucre 913 mm, bell-shaped or hemispheric; phyllaries densely glandular, ± bristly, tips acuminate; chaff scales free or fused only near base
Ray flowers 812, showy; corolla tubes ± 3 mm, ligules 713 mm
Disk flowers 3065, fertile; corollas 57 mm; anthers black
Fruit: ray achenes 57 mm, club-shaped, moderately curved, ± compressed side-to-side, obscurely 5-veined, dark brown or black, ± glabrous, beak ± 0, pappus 0 or minute crown; disk achenes 58 mm, narrowly club-shaped, short-hairy, brown; pappus scales 510, 15 mm, linear-lanceolate, ciliate
Ecology: Meadows, streambanks
Elevation: 10002600 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Cascade Range, High Sierra Nevada
Distribution outside California: s Oregon
Recent taxonomic note: *Kyhosia bolanderi (A. Gray) B.G. Baldwin
|YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).|