|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, shrub
Stem generally erect, branched, glabrous, hairy, or glandular
Leaves generally cauline, alternate, opposite, or whorled, simple, sessile, generally linear to ovate; stipules glandular or 0
Inflorescence: raceme or cyme, axillary, open to dense
Flower generally bisexual, radial, nodding in bud; sepals 45, free, glabrous, hairy, or margins gland-toothed; petals 45, free, blue, white, yellow, or pink, ephemeral; stamens 45, alternate petals, generally appendaged; staminodes alternate stamens or 0; ovary superior, chambers 25 but becoming 410 by growth of false septa, styles 25
Fruit: generally capsule
Genera in family: 13 genera, 300 species: worldwide, especially temp; some cultivated (Linum usitatissimum , flax, linseed; L. bienne, L. grandiflorum , ornamental)
Reference: [Robertson 1971 J Arnold Arbor 52: 649665]
Stem 550 cm
Leaves generally alternate, generally thread-like to linear, generally flat, generally not clasping
Inflorescence: cyme, generally open; pedicels thread-like, generally ascending to erect
Flower: sepals 5, glabrous, hairy, or margins minutely gland-toothed; petals 5, generally widely spreading, 112 mm, yellow or white to rose, each with 3 small scales at inner base; stamens 5; staminodes 0; ovary chambers 4 or 6, styles 23, stigmas ± = styles in width
Fruit: surface smooth
Species in genus: 13 species: especially CA; mostly localized, mostly on serpentine
Etymology: (Greek & Latin: western flax)
Reference: [Sharsmith 1961 Univ Calif Publ Bot 32:235314]
Generally self-pollinated. Segregated from Linum.
Plant 520 cm, ± glabrousSee the CNPS Inventory for information about endangerment and rarity.
Leaves alternate, linear
Inflorescence short, dense; pedicels generally < 3 mm
Flower: sepals 34 mm, margins gland-toothed; petals 410 mm, yellow; stamens 5.510 mm, anthers yellow; ovary chambers 6, styles 3, 38 mm, yellow
Ecology: Chaparral or grassland, sometimes on serpentine
Elevation: 30700 m.
Bioregional distribution: s Inner North Coast Ranges (Napa, Solano cos.), ne San Francisco Bay Area (Mount Diablo area, Contra Costa Co.).