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|
Perennial, shrub, tree, glabrous or hairy
Stem often forked
Leaves opposite, sessile or petioled, pairs generally unequal; blade generally entire
Inflorescence generally forked; of spikes, clusters, or umbels, each unit sometimes with a calyx-like involucre
Flower bisexual, radial; perianth of 1 whorl, petal-like, bell- to trumpet-shaped, base hardened, tightly surrounding ovary in fruit, lobes 45, generally notched to ± bilateral; stamens 1many; ovary superior (appearing inferior because of hardened perianth base), style 1
Fruit: achene or nut, smooth, wrinkled, or ribbed
Genera in family: 30 genera, 300 species: warm regions, especially Am; some ornamental (Bougainvillea ; Mirabilis , four o'clock).
Perennial from large taproot
Leaf petioled; blade < 8 cm, fleshy, margin often wavy
Inflorescence: head; bracts 510, green, flowers blooming sequentially across head; receptacle flat to ± conic, studded with peg-like pedicels
Flower: perianth trumpet-shaped, nocturnal, lobes 45; stamens 35, included; stigma linear, included
Fruit: wings 35, wide, continuous above and below fruit body, thin, transparent, conspicuously net-veined
Species in genus: 3 species: arid North America
Etymology: (Greek & Latin: 3-winged cup, from fruit)
[Galloway 1977 Brittonia 27:328347] Closely related to Abronia.
See the CNPS Inventory for information about endangerment and rarity.
Stem < 3 dm, glandular-sticky
Leaf: blade 2.57 cm, ovate to elliptic, ± glandular-hairy
Flower: perianth (8)1825 mm
Fruit: wings hairy on edges and often on veins near base
Ecology: Sagebrush scrub
Elevation: 12001500 m.
Bioregional distribution: Modoc Plateau (Lassen Co.)
Distribution outside California: nw Nevada
Synonyms: Abronia c-m. Kellogg
Horticultural 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).|