Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
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.



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


Steven L. Timbrook

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


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.


subsp. setosissima


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

previous taxon | next taxon
bioregional map for LANGLOISIA%20setosissima%20subsp.%20setosissima being generated
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).

Retrieve Jepson Interchange Index to Plant Names entry for Langloisia setosissima subsp. setosissima
Retrieve dichotomous key for Langloisia
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
  • This page is no longer being maintained.

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California