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.

POLEMONIACEAE

PHLOX FAMILY

Robert W. Patterson, Family Editor

Annual, perennial herb, shrub, vine
Leaves simple or compound, cauline (or most in basal rosette), alternate or opposite; stipules 0
Inflorescence: cymes, heads, or flowers solitary
Flower: calyx generally 5-ribbed, ribs often connected by translucent membranes that are generally torn by growing fruit; corolla generally 5-lobed, radial or bilateral, salverform to bell-shaped, throat often well defined; stamens generally 5, epipetalous, attached at same or different levels, filaments of same or different lengths, pollen white, yellow, blue, or red; ovary superior, chambers generally 3, style 1, stigmas generally 3
Fruit: capsule
Seeds 1–many, gelatinous or not when wet
Genera in family: 19 genera, 320 species: Am, n Eur, n Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox )
Recent taxonomic note: *See also revised taxonomy of Porter and Johnson 2000 Aliso 19(1):55–91; Porter 1998 Aliso 17:83–85
.

LANGLOISIA

Steven L. Timbrook


Species in genus: 1 sp
Etymology: (Rev. A.B. Langlois, Louisiana botanist)
Reference: [Timbrook 1986 Madroño 33:157–174]

Native

L. setosissima (Torr. & A. Gray) Greene

Annual, bristly, generally hairy; hairs branched, nonglandular
Stem erect, generally naked below, leafy above
Leaves alternate, simple, linear or oblanceolate, 3–5-toothed at tip, each tooth with 1 bristle; basal teeth of upper leaves reduced to cluster of 2–3 bristles
Inflorescence: clusters, terminal, head-like; bracts leaf-like; pedicels 0–short
Flower: calyx lobes equal, bristle-tipped; corolla funnel-shaped; stamens attached at or below sinuses, equal, exserted, pollen white to blue; style exserted
Fruit oblong-lanceolate, triangular in X -section; outer wall of valve flat
Seeds gelatinous when wet
Ecology: Dry, generally sandy places
Elevation: generally < 1800 m.
Bioregional distribution: East of Sierra Nevada, Desert
Distribution outside California: to Nevada, Arizona, n Mexico; also in e Oregon, w Idaho
Self-compatible; generally cross-pollinated. Sspp. intergrade.

Native

subsp. setosissima

BRISTLY LANGLOISIA


Flower: corolla lavender to blue, unmarked or with purple lines, lobes 1/3–1/2 tube; stamens < 3 mm
Ecology: Common. Desert washes, flats, slopes, gravelly to sandy soils
Elevation: generally < 1800 m.
Bioregional distribution: East of Sierra Nevada, Desert
Distribution outside California: to Nevada, Arizona, n Mexico
Flowering time: Feb–Jun

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bioregional map for LANGLOISIA%20setosissima%20subsp.%20setosissima being generated
 


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