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, shrub, generally monoecious, generally aquatic
Leaves cauline, opposite, alternate, or whorled; submersed blades with pinnate, thread-like divisions; aerial leaves simple, entire to divided
Inflorescence: panicle, raceme, or spike; flowers 1 or clustered, short-pedicelled to ± sessile
Flower generally unisexual (bisexual in Haloragis ), small, biradial; calyx tube short, fused to ovary, lobes 2–4; petals generally 2–4; stamens 4 or 8, filaments generally short; ovary inferior, chambers 1–4, styles 2–4, separate, stigmas generally plumose
Fruit fleshy or nut-like, dehiscent or not
Seeds generally 1 per chamber
Genera in family: 6–8 genera, ± 100 species: especially s hemisphere, some cultivated.
Annual, perennial herb, small shrub, terrestrial
Stem erect
Leaves simple, alternate or opposite; blade lanceolate to round, entire, toothed, or lobed
Inflorescence: raceme or panicle, axillary; flower 1 or clustered
Flower bisexual; calyx lobes 2–4, persistent in fruit; petals 2–4; stamens 4 or 8, deciduous, filaments short; ovary 1–4-chambered, stigmas plumose
Fruit indehiscent, winged or ribbed
Species in genus: ± 70 species: s hemisphere
Etymology: (Greek: wetland plant with clustered fruits)
Reference: [Forde 1964 New Zealand J Bot 2:425–453]
| Introduced |
Perennial, small shrub
Stems many, < 1 m, 4-angled
Leaves opposite; lower petioled; upper subsessile; blade generally 2.5–5 cm, lanceolate, toothed
Inflorescence: flowers clustered, bracted; pedicel short
Flower: calyx lobes 4; petals 4, deciduous; stamens 8, anthers > filaments; ovary 4-angled, 4-chambered
Fruit 4-winged
Seed 1 per chamber
Ecology: Uncommon. Disturbed urban sites
Elevation: < 100 m.
Bioregional distribution: San Francisco Bay Area
Distribution outside California: native to New Zealand
Cult.
| 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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