Jepson eFlora: Taxon page
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Collomia heterophylla

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: CollomiaView DescriptionDichotomous Key

Stem: hairy or glandular. Leaf: alternate, simple, entire to generally pinnate-lobed, linear to ovate [fan-shaped]; basal short-petioled; cauline sessile. Inflorescence: heads or clusters, terminal, or flowers 1--3 in axils. Flower: calyx lobes connected by narrow membrane forming a pitcher-like projection at sinus, enlarging, not rupturing in fruit; corolla salverform to funnel-shaped. Fruit: ovate to elliptic, explosively dehiscent, valves reflexed on dehiscence. Seed: 1(2--3) per chamber, oblong, generally gelatinous when wet, brown. Chromosomes: 2n=16.
Species In Genus: 15 species: North America, southern South America. Etymology: (Greek: glue, from wet seed surface) Note: Annual species self-pollinated; perennial herb species generally cross-pollinated.
eFlora Treatment Author: Leigh A. Johnson & Dieter H. Wilken

Collomia heterophylla Hook.
Habit: Annual. Stem: erect, branches generally several, subequal, spreading to ascending; internodes long-translucent-glandular-hairy. Leaf: lower 1--2 pinnate-lobed; upper lobed to entire, generally glandular-hairy. Inflorescence: clusters, terminal and axillary; flowers 7--25. Flower: calyx 5--8 mm, lobes narrowly lanceolate; corolla 10--14 mm, tube yellow to light pink, throat yellow to white, lobes light pink to white; filaments attached at > 1 level, < 1 mm, pollen white. Seed: 2--3 per chamber.
Ecology: Sandy to gravelly, open areas; Elevation: < 2000 m. Bioregional Distribution: KR, NCoR, CaR, SNF, n&s SNH, SnFrB, SCoR; Distribution Outside California: to British Columbia, Idaho. Flowering Time: Apr--Jun
eFlora Treatment Author: Leigh A. Johnson & Dieter H. Wilken
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Citation for this treatment: Leigh A. Johnson & Dieter H. Wilken 2017. Collomia heterophylla, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on September 23, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora,, accessed on September 23, 2017.

Collomia heterophylla
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© 2016 Keir Morse
Collomia heterophylla
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© 2015 Neal Kramer
Collomia heterophylla
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© 2017 Steve Matson
Collomia heterophylla
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© 2008 Keir Morse
Collomia heterophylla
click for enlargement
© 2015 Neal Kramer
Collomia heterophylla
click for enlargement
© 2005 Steve Matson

More photos of Collomia heterophylla in CalPhotos

Geographic subdivisions for Collomia heterophylla:
KR, NCoR, CaR, SNF, n&s SNH, SnFrB, SCoR;
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.
View all CCH records

CCH collections by month

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