Jepson eFlora: Taxon page
Vascular Plants of California
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Langloisia setosissima

Higher Taxonomy
Family: PolemoniaceaeView DescriptionDichotomous Key
Habit: Annual, perennial herb, shrub, vine. Leaf: simple or compound, cauline (or most basal), alternate or opposite; stipules 0. Inflorescence: cymes, heads, clusters, or flower 1; bracts in involucres or not. Flower: sepals generally 5, fused at base, translucent membrane generally connecting lobes, torn by fruit; corolla generally 5-lobed, radial or bilateral, salverform to bell-shaped, throat often well defined; stamens generally 5, epipetalous, attached at >= 1 level, filaments of >= 1 length, pollen white, yellow, blue, or red; ovary superior, chambers generally 3, style 1, stigmas generally 3. Fruit: capsule. Seed: 1--many, when wetted swelling or not, gelatinous or not.
Genera In Family: 26 genera, 314 species: America, northern Europe, northern Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox). Note: Leptodactylon moved to Linanthus.
eFlora Treatment Author: Robert Patterson, family description, key to genera, except as noted
Scientific Editor: Robert Patterson, Thomas J. Rosatti.
Genus: LangloisiaView Description 

Species In Genus: 1 sp. Etymology: (Rev. A.B. Langlois, Lousiana botanist, 1832--1990)
eFlora Treatment Author: Dieter H. Wilken & Steven L. Timbrook
Unabridged Reference: Timbrook 1986 Madroño 33:157--174
Langloisia setosissima (Torr. & A. Gray) Greene
Habit: Annual, bristly, generally hairy; hairs branched, nonglandular. Stem: erect. Leaf: generally 0 below, alternate, simple, linear or oblanceolate, teeth 3--5, at tip, each with 1 bristle, basal teeth of upper leaves reduced to clusters of 2--3 bristles. Inflorescence: terminal, head-like; bracts leaf-like; pedicels 0--short. Flower: calyx lobes equal, bristle-tipped; corolla radial, funnel-shaped; stamens attached at or below sinuses, equal, exserted, pollen white to blue; style exserted. Fruit: lance-oblong, triangular in ×-section; outer wall of valve flat. Seed: gelatinous when wet. Chromosomes: 2n=14.
Note: Self-compatible; generally cross-pollinated. Subspecies intergrade.
Jepson eFlora Author: Dieter H. Wilken & Steven L. Timbrook
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Key to Langloisia setosissima

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Next taxon: Langloisia setosissima subsp. punctata

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Citation for this treatment: Dieter H. Wilken & Steven L. Timbrook 2012, Langloisia setosissima, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on June 13, 2021.

Citation for the whole project: Jepson Flora Project (eds.) 2021, Jepson eFlora,, accessed on June 13, 2021.

Langloisia setosissima subsp. punctata
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© 1998 Larry Blakely
Langloisia setosissima subsp. punctata
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© 1991 Gary A. Monroe
Langloisia setosissima subsp. punctata
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© 2009 Keir Morse
Langloisia setosissima subsp. setosissima
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© 2012 Keir Morse
Langloisia setosissima subsp. punctata
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© 2008 Steve Matson
Langloisia setosissima subsp. setosissima
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© 2005 Steve Matson

More photos of Langloisia setosissima subsp. setosissima in CalPhotos

Geographic subdivisions for Langloisia setosissima:
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).


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Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).