Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Collomia linearis

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: 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 linearis Nutt.
Habit: Annual. Stem: erect, simple or in robust plants branched above, or occasionally branches many, internodes congested, plants then generally as wide as tall; internodes at mid-plant reflexed-short-white-nonglandular-hairy. Leaf: basal lanceolate, toothed or not; cauline lanceolate to linear, entire, lower +- glandular, upper generally glabrous. Inflorescence: bracted head, terminal, occasionally on axillary stems; flowers 7--20. Flower: calyx 4--7 mm; corolla 8--15 mm, white to pink; filaments attached at > 1 level, < 1 mm, anthers included, pollen generally white. Seed: 1 per chamber.
Ecology: Open areas; Elevation: 600--3650 m. Bioregional Distribution: KR, CaR, SN, SnBr, GB; Distribution Outside California: to Alaska, eastern North America, Arizona; naturalized elsewhere. Flowering Time: May--Aug
eFlora Treatment Author: Leigh A. Johnson & Dieter H. Wilken
Jepson Online Interchange

Previous taxon: Collomia larsenii
Next taxon: Collomia rawsoniana

Name Search
botanical illustration including Collomia linearis


Citation for this treatment: Leigh A. Johnson & Dieter H. Wilken 2016. Collomia linearis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 28, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 28, 2016.

Collomia linearis
click for enlargement
© 1990 Gary A. Monroe
Collomia linearis
click for enlargement
© 2010 Barry Breckling
Collomia linearis
click for enlargement
© 2009 Barry Breckling
Collomia linearis
click for enlargement
© 2009 Keir Morse
Collomia linearis
click for enlargement
© 2003 Steve Matson
Collomia linearis
click for enlargement
© 2011 California Academy of Sciences

More photos of Collomia linearis in CalPhotos

Geographic subdivisions for Collomia linearis:
KR, CaR, SN, SnBr, GB;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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.