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Vascular Plants of California
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Leptosiphon bicolor

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: LeptosiphonView DescriptionDichotomous Key

Habit: Annual, perennial herb. Stem: generally erect, generally branched from base. Leaf: cauline, opposite, entire or lobes 3--9, palmate, linear to narrowly lanceolate or spoon-shaped, generally not fused by membrane. Inflorescence: head, open clusters, few-flowered cyme, or flower 1; bracts +- leaf-like, generally palmate-lobed, lobes generally not connected by translucent membrane; flowers sessile or not. Flower: sepals generally equal; corolla funnel-shaped, salverform, or bell-shaped, with hairy ring inside tube or generally not (determined at 10×); stamens attached at 1 level, pollen yellow.
Species In Genus: 30 species: western North America, Chile. Etymology: (Greek: narrow tube, for corollas of some species) Note: Calyx lobe membrane generally expressed as length relative to calyx or lobe length, or as width relative to calyx lobe.
eFlora Treatment Author: Robert Patterson & Robyn Battaglia
Reference: Battaglia & Patterson 2001 Madroño 48:62--78
Leptosiphon bicolor Nutt.
Habit: Annual, hairy. Stem: 2--21 cm. Leaf: lobes 3--13 mm, narrowly obovate to linear. Inflorescence: head, generally 1 flower open at a time in each inflorescence, late morning, closed by early evening. Flower: calyx 6--11 mm, ciliate, nonglandular, membrane obscure; corolla salverform, tube 12--32 mm, thread-like, +- red, throat yellow, lobes generally < 4 mm, obovate, rounded or truncate, pink, white, or pale yellow; stamens exserted; stigmas <= 1(3) mm. Chromosomes: 2n=18.
Ecology: Common. Open, grassy areas, chaparral, woodland; Elevation: generally < 1700 m. Bioregional Distribution: NCoR, SNF, SnFrB, SCoR, s ChI, WTR. Flowering Time: Mar--Jun
Synonyms: Linanthus bicolor (Nutt.) Greene;
Jepson eFlora Author: Robert Patterson & Robyn Battaglia
Reference: Battaglia & Patterson 2001 Madroño 48:62--78
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Citation for this treatment: Robert Patterson & Robyn Battaglia 2012, Leptosiphon bicolor, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on December 14, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on December 14, 2018.

Leptosiphon bicolor
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© 2016 Keir Morse
Leptosiphon bicolor
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© 2007 George W. Hartwell
Leptosiphon bicolor
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© 2009 Keir Morse
Leptosiphon bicolor
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© 2008 Steve Matson
Leptosiphon bicolor
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© 2011 Steve Matson
Leptosiphon bicolor
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© 2008 George W. Hartwell

More photos of Leptosiphon bicolor in CalPhotos

Geographic subdivisions for Leptosiphon bicolor:
NCoR, SNF, SnFrB, SCoR, s ChI, WTR.
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).

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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, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.