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, shrubs, generally bristly or sharply hairy
Stem prostrate to erect
Leaves cauline, often with basal rosette, generally simple, alternate; lower sometimes opposite, entire
Inflorescence: cyme, generally elongate, panicle-, raceme- or spike-like, coiled in flower, generally uncoiled in fruit or flowers 1–2 per axil
Flowers generally bisexual, generally radial; sepals 5, free or fused in lower half; corolla 5-lobed, generally salverform, top of tube generally appendaged, appendages 5, alternating with stamens, sometimes arching over tube; stamens 5, epipetalous; ovary superior, generally 4-lobed, style generally entire
Fruit: nutlets 1–4, smooth to variously roughened, sometimes prickly or bristled
Genera in family: ± 100 genera, ± 2000 species: tropical, temp, especially w North America, Medit; some cultivated (Borago, Echium, Myosotis, Symphytum ).Almost all genera may be TOXIC from alkaloids or accumulated nitrates
Recent taxonomic note: Recently treated to include Hydrophyllaceae [Olmsted et al. 2000 Mol Phylog Evol 16:96–112]
Family description, key to genera by Timothy C. Messick.
Annual, perennial herb, subshrub, variously hairy, ± taprooted; rhizome generally 0
Stem spreading to prostrate
Leaves cauline, alternate, generally clustered, evergreen, petioled; margin rolled under, entire or ± crenate
Inflorescence ± axillary; flowers solitary or clustered, sessile
Flower: calyx ± deeply 5-lobed, not enlarging in fruit; corolla 5-lobed, generally ± funnel-shaped, tube yellow when young, appendages 0; style branches 2
Fruit: nutlets 1–4, sometimes ± tubercled
Species in genus: 27 species: w hemisphere deserts
Etymology: (native South America. name for flower)
Reference: [Richardson 1977 Rhodora 79:467–572]
Separated from Coldenia of e hemisphere.
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Annual
Stem: branches opposite; hairs ± appressed
Leaves clustered; hairs ± spreading; blade 3.5–9 mm, ovate to round, margin entire, veins 2–3 pairs, shallowly sunken, ± 30° from midvein
Inflorescence: flowers clustered, bracted
Flower: calyx 3–5 mm, free 2/3–3/4 length, hairs within short; corolla 3–4 mm, 2–2.5 mm wide, pink to white; style < calyx, branched 1/3–1/2 from tip
Fruit deeply 4-lobed
Seed oblong-ovoid, smooth, shiny
Chromosomes: n=8
Ecology: Sandy plains, washes, slopes, saline flats
Elevation: < 2400 m.
Bioregional distribution: Tehachapi Mountain Area, e Modoc Plateau, East of Sierra Nevada, Mojave Desert
Distribution outside California: to Oregon, Utah; also in Argentina
Flowering time: May–Aug
Synonyms: Coldenia n. Hook
| 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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