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, perennial herb, shrubs
Leaves simple, opposite or alternate
Inflorescence: heads radiate or discoid, solitary or in few–many-headed cymes; phyllaries in 2–6 equal to very unequal series, free; receptacle flat to conic, chaffy; chaff scales entire, folded around ovaries
Ray flowers fertile or sterile; corollas yellow to white
Disk flowers many; corollas yellow to orange; style branches acute to acuminate
Fruit: ray achenes triangular or 0; disk achenes flattened, wing-margined, obovate; pappus 0 or of 2 awns
Etymology: (Derived from Verbena)
Reference: [Coleman 1966 Madroño 18:129–137; Coleman 1966 Amer Midl Naturalist 76:475–481]
| Native |
Subshrub generally < 1 m
Stems glabrous or short-hairy near inflorescence
Leaves sessile; blade ovate, 1-veined, entire or with few, short teeth, bright green, glabrous to densely scabrous
Inflorescence: cyme, ± flat-topped; peduncles subtended by scale-like entire bracts; heads 3–16; phyllaries in 3–4 unequal series, 5–13 mm, oblong, obtuse to acute, short-hairy; chaff scales 10–13 mm, acute
Ray flowers sterile; ligule orange-yellow, ± entire; style 0, ovary 2.5–3 mm
Disk flowers: corolla 7–9 mm; anthers dark brown
Fruit 8–9 mm, dark brown, glabrous; wing thin, brown; pappus of 2 awns, 3–4 mm
Ecology: Shrubby coastal slopes
Elevation: < 100 m.
Bioregional distribution: s South Coast (Orange Co.), naturalized in San Bernardino Mountains
Distribution outside California: Baja California
See the CNPS Inventory for information about endangerment and rarity.| 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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