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 shrub; hairs needle-like, stinging, or rough
Leaves alternate in CA, generally ± pinnately lobed; stipules 0
Inflorescence various
Flower bisexual, radial; sepals generally 5, generally persistent in fruit; petals generally 5, free or fused to each other or to filament tube; stamens 5–many, filaments thread-like to flat, sometimes fused at base or in clusters; petal-like staminodes sometimes present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1
Fruit: generally capsule (utricle)
Seeds 1–many
Genera in family: 15 genera, ± 200 species: especially Am (Africa, Pacific)
Reference: [Ernst & Thompson 1963 J Arnold Arbor 44:138–142]
Annual to subshrub; hairs generally needle-like and stinging (or barbed)
Leaf widely ovate to ± round, toothed to ± lobed; base widely tapered to cordate
Inflorescence: cyme, bracted
Flower: petals fused below middle or to filament tube; stamens many, epipetalous or fused at base into short tube; ovary club-shaped to spheric, placentas 5, stigma lobes 5, generally appressed
Fruit obovoid to spheric, nodding or reflexed, clearly pedicelled, dehiscent from top by 5 valves
Seeds many, < 1 mm, ± oblong, grooved or ribbed
Species in genus: 8 species: sw US, n Mex
Etymology: (Greek: strongly nettle-like)
| Native |
Subshrub 30–100 cm
Leaf: petiole < 5 cm; blade < 10 cm, generally ovate, ± irregularly toothed, gray-green and dull above, base truncate to cordate
Flower: pedicel in fruit < 1.5 cm, ascending to erect; sepals 15–22 mm, 5–7 mm wide, tip acuminate; petals ± free, 30–50 mm, spreading, whitish to pale yellow; stamens fused at base, tube 2–5 mm, filaments 10–20 mm; stigma lobes slightly above anthers
Fruit 10–20 mm, club-shaped to obconic
Chromosomes: n=21
Ecology: Cliffs, rocky slopes, washes
Elevation: < 1400 m.
Bioregional distribution: Desert
Distribution outside California: to sw Utah, Arizona, n Mexico
Flowering time: Apr–Jun
| 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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