|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
For up-to-date information about California vascular plants, visit the Jepson eFlora.
Perennial (annual), generally twining or trailing
Inflorescence: cyme or flowers solitary in axils; pedicels often with 2 bracts
Flower bisexual, radial; sepals 5, ± free, overlapping, persistent, often unequal; corolla generally showy, generally bell-shaped, ± shallowly 5-lobed, generally pleated and twisted in bud; stamens 5, epipetalous; pistil 1, ovary superior, chambers generally 2, ovules generally 2 per chamber, styles 12
Fruit: generally capsule
Genera in family: 50 genera, 1,000 species: warm temp to tropical; some cultivated as ornamental
Recent taxonomic note: Recently treated to include Cuscutaceae [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531553].
(Family description, key to genera by L.T. Dempster)
Perennial, matted from creeping stolons; hairs equally forked
Leaf: petiole long; blade ± reniform
Inflorescence: flowers solitary in axils; bracts 0; upper peduncle recurved in fruit
Flower inconspicuous; calyx lobes 5, deep, ± equal, ovate to obovate; corolla barely > calyx, lobes > tube; ovary 2-lobed, each lobe with 2 ovules, styles 2, separate or fused at base, stigmas head-shaped
Fruit spheric to ± 2-lobed
Species in genus: 9 species: temp & tropical
Etymology: (Greek: double grain, from deeply lobed fruit of some)
Reference: [Tharp & Johnston 1961 Brittonia 13: 346360]
Cult as ground cover.
Plant densely brownish silky
Leaf generally < 65 mm
Ecology: Uncommon. Open slopes, moist fields
Elevation: 50300 m.
Bioregional distribution: North Coast, n Sierra Nevada, Central Western California, probably introduced in South Coast, n Channel Islands.Much like D. micrantha Urban of TX, Mex
Horticultural information: IRR: 2, 3, 7, 8, 9, 14, 18, 19, 23 &SUN: 15, 16, 17; GRCVR.
|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).|