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 or perennial herb, often rhizomed, often of wet open places, generally monoecious; roots fibrous, hairy
Stem generally 3-sided
Leaves often 3-ranked; sheath generally closed; ligule generally 0; blade (0) various, parallel-veined
Inflorescence: spikelets variously clustered; flowers generally sessile in axil of flower bract
Flower small, generally wind-pollinated; perianth 0 or bristle-like; stamens generally 3, anthers attached at base, 4-chambered; ovary superior, 1-chambered, 1-ovuled, style 2–3-branched
Fruit: achene, generally 3-sided
Genera in family: ± 110 genera, 3600 species: worldwide, especially temp
Reference: [Tucker 1987 J Arnold Arbor 68:361–445]
Difficult: taxa differ in technical characters of inflorescence and fruit.
Perennial
Stem leafy, solid
Leaves sheathing; uppermost often bladeless
Inflorescence subtended by 1–several, leaf- or scale-like bracts; spikelets terminal, solitary, or in head-like clusters; flower bracts spiraled
Flowers bisexual; perianth bristles 6–many, > flower bracts, persistent, often greatly elongating; stamens 3; style 3-branched
Fruit ± flat or 3-sided
Species in genus: ± 20 species: especially n temp (1 s Africa)
Etymology: (Greek: wool-bearing)
| Native |
Stem 2–10 dm, erect, 3- sided
Leaves 4–10 cm, flat; basal present at flower
Inflorescence: spikelets 5–10
Flower: perianth bristles 6–7, barbed, tawny
Ecology: Wet meadows, streambanks
Elevation: generally > 2000 m.
Bioregional distribution: Northwestern California, Cascade Range, High Sierra Nevada
Distribution outside California: s Oregon
Synonyms: Scirpus c. A. GrayHorticultural information: WET or IRR, DRN: 1, 2, 3, 4, 5, 6, 7, 14, 15, 16, 17.
| 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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