Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Raymond Cranfill, except as specified

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.


Annual or perennial herb, cespitose
Stem round, slender, solid, ridged and grooved
Leaves several, basal; bases sheathing, margins wide, scarious; blades 0 to linear, flat, folded, or upcurled
Inflorescence: spikelets in terminal, panicle-like clusters; flower bracts spiraled, deciduous
Flowers bisexual; perianth bristles 0; stamens generally 3; style 2–3-branched, generally fringed below branches, widest at base, deciduous
Fruit 2–3-sided or round, surface cells ± square or horizontally elongate
Species in genus: ± 200 species: worldwide
Etymology: (Latin: fringed style)
Reference: [Kral 1971 Sida 4:57–227]


F. miliacea (L.) Vahl

Annual < 5 dm
Stem = or > leaves, ± flat
Leaves 2-ranked
Inflorescence: spikelet long-peduncled, nearly round, obtuse; flower bracts glabrous, fruiting bracts widely ovate, generally dark brown with paler or greenish midribs, tips obtuse to notched
Flower: style 3-branched, entire to weakly fringed below branches
Fruit ± 1 mm, obovate, ± 3-sided, 3-ridged, pale brown
Chromosomes: 2n=10
Ecology: Rice fields
Elevation: > 300 m.
Bioregional distribution: Great Central Valley
Distribution outside California: native to Old World tropical, widespread alien
Collected in SnFrB in 1866.

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bioregional map for FIMBRISTYLIS%20miliacea being generated
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).

Retrieve Jepson Interchange Index to Plant Names entry for Fimbristylis miliacea
Retrieve dichotomous key for Fimbristylis
Overlay Consortium of California Herbaria specimen data by county on this map
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