|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Annual, perennial herb, generally from rhizomes
Stem round or flat
Leaves generally mostly basal; sheath margins fused, or overlapping and generally with 2 ear-like extensions at blade junction; blade round, flat, or vestigial, glabrous or margin hairy
Inflorescence: head-like clusters or single flowers, variously arranged; bracts subtending inflorescence 2, generally leaf-like; bracts subtending inflorescence branches 12, reduced; bractlets subtending flowers generally 12, generally translucent
Flower generally bisexual, radial; sepals and petals similar, persistent, green to brown or purplish black; stamens generally 3 or 6, anthers linear, persistent; pistil 1, ovary superior, chambers generally 1 or 3, placentas 1 and basal or 3 and axile or parietal, stigmas generally > style
Fruit: capsule, loculicidal
Seeds 3many, often with white appendages on 1 or both ends
Genera in family: 9 genera, 325 species: temp, arctic, tropical mtns. Fls late spring to early fall.
Annual, perennial herb; rhizome (if any) generally with scale-like leaves
Stem generally cylindric or flat
Leaf: blade well developed and cylindric or flat, or reduced to small point; crosswalls often present (pull fresh blade apart lengthwise to see or slide leaf between fingers to feel); appendages often present at blade-sheath junction
Inflorescence generally terminal (appearing lateral when pushed aside by lowest inflorescence bract); bractlets 02
Flowers: stamens generally 3 or 6 (2 in some very small annual taxa); pistil 1, ovary chambers 1 or 3, placentas axile or parietal, stigmas generally 3(2)
Species in genus: 225 species: worldwide, especially n hemisphere
Etymology: (Latin: to join or bind, from use of stems)
Reference: [Ertter 1986 Mem NY Bot Gard 39:190]
Perennial 1050 cm; rhizome stout, creeping
Leaf: bases overlapping; sheath appendages indistinct; blade flat, with edge toward stem, often > stem, 1.54 mm wide, crosswalls generally incomplete, tip fine-pointed
Inflorescence: lowest bract slightly > lowest cluster; clusters 1many, fewmany-flowered
Flower: perianth segments 45 mm, ± equal, widely lanceolate, dark brown; stamens 6, filaments << conspicuous anthers; stigmas long-exserted
Fruit < to = perianth; beak long-tapered
Seed 0.6 mm, ovoid
Ecology: Moist places
Elevation: < 2200 m.
Bioregional distribution: North Coast, n High Sierra Nevada, Central Coast, San Francisco Bay Area, South Coast, n Channel Islands, San Bernardino Mountains, Peninsular Ranges.
Stems separated along rhizome
Inflorescence: clusters 110, 1015 mm wide, many-flowered
Ecology: Coastal meadows and borders of marshes
Elevation: generally < 100 m.
Bioregional distribution: North Coast, Central Coast, South Coast, n Channel Islands
Horticultural information: IRR: 4, 5, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24; INV, also STBL.