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, perennial herb, shrubs
Leaves simple, generally opposite; stipules 0
Inflorescence: cyme, spike, or raceme, bracted
Flower bisexual; calyx deeply (3)4–5 lobed; corolla 4–5 lobed, nearly radial to 2-lipped; stamens (2)4, epipetalous, anther sacs sometimes dissimilar in size or placement; ovary superior, chambers 2, ovules 4–many, placentas axile, style long, stigmas 1–2
Fruit: capsule, loculicidal, generally dehiscing explosively
Seeds generally 2 per chamber, ejected by specialized hook-like stalks
Genera in family: 250 genera, 3000 species: especially tropical; some ornamental: Justicia (Beloperone, shrimp-plant), Acanthus , Thunbergia. [Daniel 1984 Desert Plants 5:162–179]
Subshrub, shrub
Inflorescence generally spike- or panicle-like
Flower: calyx 5-lobed; corolla appearing 4-lobed, tube < lobes, slender, barely wider at throat, uppermost lobe generally notched (actually 2 lobes ± entirely fused), 2 lateral lobes ascending or reflexed, lowest lobe ± keeled, containing anthers and style; stamens 2, anther sacs ± equally inserted on filament, opening toward uppermost lobe, not spurred
Fruit compressed-ovoid, on flattened stalk
Seeds 4, disk-like, notched at base
Species in genus: 23 species: especially sw US, Mex
Etymology: (Charles Wright 1811–85, Am botanical collector)
Reference: [Daniel 1988 Brittonia 40:245–255]
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Stem multi-branched, < 1 m, puberulent; hairs erect or recurved
Leaves variable in size and shape; blade generally < 5 cm, lanceolate to elliptic, sometimes cordate, puberulent; petiole 0–8 mm
Inflorescence: spike; flowers 1–several per bract
Flower: calyx 1.5–5 mm, lobes narrow-triangular; corolla 10–18 mm, white with yellow, maroon-streaked eye on upper lip
Fruit 7–11 mm, glabrous
Seed 3–4 mm, tubercled; margin finely dentate
Chromosomes: 2n=18
Ecology: Rocky slopes
Elevation: ± 300 m.
Bioregional distribution: w Sonoran Desert (Palm Canyon, Borrego Springs)
Distribution outside California: to Texas, C.America
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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