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Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
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Robert Patterson, family description, key to genera

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.
26 genera, 314 species: America, northern Europe, northern Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox). [Porter & Johnson 2000 Aliso 19:55–91] Leptodactylon moved to Linanthus. —Scientific Editors: Robert Patterson, Thomas J. Rosatti.

Key to Polemoniaceae


Leigh A. Johnson & Dieter H. Wilken

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.
15 species: North America, southern South America. (Greek: glue, from wet seed surface) Annual species self-pollinated; perennial herb species generally cross-pollinated.
Unabridged references: [Wilken et al. 1982 Biochem Syst Ecol 10:239–243]

Key to Collomia

C. larsenii (A. Gray) Payson TALUS COLLOMIA
Perennial herb, generally cespitose, from slender rhizomes. Stem: generally branched, < 5 cm; internodes congested, glandular-hairy. Leaf: blade < 2 cm, 1–2-pinnate- or -palmate-lobed from elongate, clasping petiole; lobes linear-oblong, narrowed at base, glandular-hairy. Inflorescence: clusters, terminal; flowers 6–9. Flower: calyx 5–9 mm; corolla 10–15 mm, light to deep purple; filaments attached at 1 level, > 3 mm, pollen blue. Seed: 1 per chamber.
Volcanic talus; 2225–3500 m. High Cascade Range (Lassen, Magee peaks, Little Mount Hoffman); to Washington. [Collomia debilis (S. Watson) Greene var. larsenii (A. Gray) Brand] Jun–Sep [Online Interchange] {CNPS list}
Unabridged note: Distinct from Collomia debilis of northern Washington, Rocky Mountains.

Previous taxon: Collomia heterophylla
Next taxon: Collomia linearis


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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 26 2015
Citation for this treatment: [Author of taxon treatment] 2013. Collomia, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 26 2015

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click for enlargement Collomia larsenii
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2006 Julie Kierstead Nelson

Geographic subdivisions indicated for the distribution of Collomia larsenii 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).

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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.
Blue line denotes eFlora flowering time.