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 |
Perennial (sometimes annual, shrub, vine, tree); sap milky
Leaves simple, entire, opposite, alternate, or subwhorled; stipules 0 or small
Inflorescence: cyme; flowers 1–many, axillary or terminal
Flower bisexual, radial; perianth parts overlapping, at least in bud; sepals 5, fused at base, persistent; petals 5, fused in ± basal half; stamens 5, attached to corolla tube or throat, alternate lobes; ovaries 2, ± superior, generally free, styles and stigmas fused
Fruit: generally 2 follicles
Seeds many, often with tuft of silky hairs
Genera in family: ± 150–200 genera, 1000–2000 species: especially tropical; many ornamental (Nerium, oleander; Plumeria , frangipani); some alkaloids highly toxic, some used in medicine
Recent taxonomic note: Recently treated to include Asclepiadaceae
Reference: [Rosatti 1989 J Arnold Arbor 70:307–401]
Plant fleshy (including large root), glabrous to tomentose
Stem ± erect
Leaves opposite
Inflorescence: flowers 2–6 near tips of axillary peduncles
Flower: calyx lobes slender; corolla funnel-shaped with 5 rounded appendages behind anthers; stamens appearing attached at base of corolla tube but filaments epipetalous up to stigma level, anthers forming cone around but free from stigma, each partly sterile, sharply sagittate; nectary disk 5-lobed, around and < ovaries; style thread-like, stigma skirted at base
Seed with tuft of long hairs
Species in genus: 1 sp.: CA
Etymology: (Greek: ring gland, from nectary)
| Native |
Plant 6–12 cm, generally glabrous, glaucous
Leaf: pairs 2–5; leaf < 9 cm; petiole < to > blade; blade ovate or rounded
Flower: calyx lobes narrowly triangular; corolla 15–20 mm, rose-purple, lobes obovate or round, margins wavy; filaments hairy
Fruit 3–5 cm
Ecology: Sandy flats to talus slopes in open pine forest, chaparral
Elevation: 1200–2800 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Cascade Range, n High Sierra Nevada, Outer South Coast Ranges, San Gabriel Mountains, East of Sierra NevadaHorticultural information: TRY.
| 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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