Jepson eFlora: Taxon page
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Linanthus demissus

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
Scientific Editor: Robert Patterson, Thomas J. Rosatti.
Genus: LinanthusView DescriptionDichotomous Key

Habit: Annual, perennial herb, subshrub. Stem: generally erect, generally branched from base. Leaf: cauline, alternate or opposite, entire or lobes 3--9, pinnate or palmate, linear to narrow-lanceolate or spoon-shaped. Inflorescence: open or dense clusters or cyme or flower 1; bracts leaf-like; flowers sessile or not. Flower: corolla funnel-shaped, salverform, or bell-shaped; stamens attached at 1 level, included or exserted, pollen yellow. Fruit: capsule, valves 3(4). Seed: generally many, when wet gelatinous to not.
Species In Genus: 25 species: western North America. Etymology: (Greek: flax flower) Note: Other taxa in TJM (1993) moved to Leptosiphon. Linanthus bernardinus described since TJM2 (Fraga & Bell 2012 Aliso 30: 97--102).
eFlora Treatment Author: Robert Patterson & J. Mark Porter

Linanthus demissus (A. Gray) Greene
Habit: Annual. Stem: decumbent, 2--10 cm, hairy or glandular. Leaf: lobes 6--10 mm, hairy or glabrous. Inflorescence: flowers generally sessile. Flower: calyx 3--4 mm, tube obscure, membrane +- = but not connecting lobes; corolla bell-shaped, tube 1--2 mm, white or yellow-green, throat 4--6 mm, white or light yellow, lobes 2--3 mm, white, base with 2 red marks; stamens included to +- exserted. Fruit: < calyx, obovoid. Seed: 18--32, not gelatinous when wet. Chromosomes: 2n=18.
Ecology: Limestone soils, desert pavement, sandy areas; Elevation: < 1700 m. Bioregional Distribution: SNE, DMoj, DSon (ne corner); Distribution Outside California: to Utah, Arizona. Flowering Time: Mar--May
eFlora Treatment Author: Robert Patterson & J. Mark Porter
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botanical illustration including Linanthus demissus


Citation for this treatment: Robert Patterson & J. Mark Porter 2016. Linanthus demissus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 25, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on October 25, 2016.

Linanthus demissus
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© 2009 Keir Morse
Linanthus demissus
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© 2009 Keir Morse
Linanthus demissus
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© 2006 Aaron Schusteff
Linanthus demissus
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© 2009 Keir Morse
Linanthus demissus
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© 2004 James M. Andre
Linanthus demissus
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© 2008 Neal Kramer

More photos of Linanthus demissus in CalPhotos

Geographic subdivisions for Linanthus demissus:
SNE, DMoj, DSon (ne corner);
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.