Jepson Interchange (more information)
Print edition is available from the University of California Press
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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 |
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TREATMENT FROM THE JEPSON MANUAL |
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Jepson Interchange (more information) |
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©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, 1–many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1–many 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)4–5; stamens 4–5, 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):1–28. See glossary p. 25 for illustrations of general family characteristics.
Annual, biennial, perennial herb from taproot; sap milky
Stems erect, < 8 dm
Leaves basal or cauline, entire to pinnately lobed
Inflorescence: heads ligulate, clustered in cymes; phyllaries in 2 distinct series; receptacle naked
Flowers 5–60; ligules yellow, readily withering
Fruit tapered at both ends, sometimes beaked; pappus of many soft, hair-like bristles
Species in genus: ± 200 species: especially n hemisphere
Etymology: (Greek: sandal, for unknown reason)
Sexual forms of native species are distinct but (except C. nana, C. runcinata) connected by many asexually reproducing forms of hybrid origin that obscure boundaries. Asexual forms are all placed in the same sp. as sexual forms, except for the asexual group described under the name C. intermedia, for which no key is attemptedHorticultural information: TRY.
| Introduced |
Annual, biennial
Stems 0.3–8 dm, much-branched, lightly tomentose, hairy below
Leaves 4–10 cm, lobed below nearly glabrous, larger, terminal segment toothed
Inflorescence: heads many in compound cymes; involucre 8–12 mm; outer phyllaries lanceolate; inner phyllaries 9–13, lanceolate, often with short, glandular hairs
Flowers many
Fruit 6–8 mm including slender beak (± 1/3 body length), 10-ribbed, pale brown; pappus white
Chromosomes: 2n=8,16
Ecology: Uncommon. Disturbed places
Elevation: 0–300 m.
Bioregional distribution: Outer North Coast Ranges, San Francisco Bay Area, South Coast
Distribution outside California: native to Europe
| 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). |
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