|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.
Annual to shrubs, ± woolly
Leaves generally alternate, entire to nearly compound
Inflorescence: heads 1many, generally radiate; cluster often ± flat-topped; involucre obconic to hemispheric; phyllaries in 1 series, free or ± fused; receptacle flat to columnar, generally naked
Ray flowers generally ± 1 per phyllary; ligules entire to lobed, generally yellow (white)
Disk flowers (3)10300; corolla yellow; anther tips ovate, deltate or awl-shaped
Fruit 4-angled or flattened in outer flowers, generally club-shaped in inner flowers; pappus 015 ± jagged or fringed scales
Species in genus: 14 species: w North America
Etymology: (Greek: woolly leaf)
Reference: [Mooring 1991 Madroño 38:213226]
Annual species by Dale E. Johnson.
Subshrub 310 dm, thick, ascendingSee the CNPS Inventory for information about endangerment and rarity.
Leaf 820 cm, widely ovate, deeply 12-pinnately lobed (lobes 925+, oblong), rolled under, white-tomentose
Inflorescence: heads 1020; peduncles < 1 cm; involucres 57 mm, narrowly bell-shaped; phyllaries 812, obtuse, keeled, barely overlapping, free; receptacle low-convex
Ray flowers 68; ligules 2 mm
Disk flowers: corollas 34 mm, glandular-hairy
Fruit 34 mm; angles bristly; pappus < 2 mm, very unequal
Ecology: Coastal bluffs
Elevation: < 35 m.
Bioregional distribution: s Channel Islands (Santa Barbara, Santa Catalina, San Clemente Islands).Threatened by goats
Horticultural information: In cultivation
Recent taxonomic note: Constancea nevinii (A. Gray) B.G. Baldwin