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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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

BORAGINACEAE

BORAGE FAMILY

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.

CRYPTANTHA

Walter A. Kelley and Dieter H. Wilken

Annual, biennial, perennial herb
Stem simple or branched; branches generally ascending to erect, hairy
Leaves strigose, rough-hairy, or bristly, largest bristles (especially lower surface) bulbous-based; basal whorled; cauline generally opposite below, alternate above
Inflorescence generally terminal, generally elongated in fruit, open (flowers in fruit not overlapping or touching side to side) or dense (flowers in fruit overlapping or touching side to side)
Flower: sepals ± free; corolla generally white, tube generally 1–13 mm, appendages 5, white to yellow, limb 1–5 mm wide in annual, 6–12 mm wide in per; anthers included; ovary generally 4-lobed,
Fruit: nutlets 1–4, back generally grayish brown, smooth and shiny or granular, tubercled, or rough at 10X , margin rounded, sometimes sharp-edged, groove on inside surface narrow, open to closed, sometimes raised, edges inrolled to sharp-angled, generally forked or flared open at base
Species in genus: ± 160 species: w Am
Etymology: (Greek: hidden flowers, from cleistogamous flowers of some species)
Reference: [Higgins 1971 Brigham Young Sci Bull Biol Ser 13(4):1–63]
Annual species generally self-pollinating; per species homostylous or heterostylous. Many annual species difficult to separate; observation of nutlets and hairs requires magnification at 20X.

Native

C. oxygona (A. Gray) Greene

Annual 10–40 cm
Stem branched throughout, strigose and sparsely rough-hairy; hairs spreading
Leaf 0.5–3(4) cm, narrowly oblanceolate to oblong, bristly; bristles ascending
Inflorescence generally dense in fruit; lowest flowers not touching
Flower: calyx ± 2 mm, 3–4 mm and narrowly lanceolate in fruit, rough-hairy to few-bristled, hairs generally ascending; corolla scented, limb 4–6 mm wide
Fruit: nutlets 4, ± 2 mm, ± ovate, back finely tubercled to white-granular, sometimes mottled gray-brown, margin winged, groove narrowly open at base
Ecology: Open sites, slopes
Elevation: < 1950 m.
Bioregional distribution: c&s Sierra Nevada Foothills, High Sierra Nevada (e slope), Tehachapi Mountain Area, San Joaquin Valley, Inner South Coast Ranges, Southwestern California (except Channel Islands), East of Sierra Nevada, w Mojave Desert
Flowering time: Mar–May

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bioregional map for CRYPTANTHA%20oxygona being generated
 
N.B. The distribution depicted here differs from that given in The Jepson Manual (1993)

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