Jepson eFlora: Taxon page
Vascular Plants of California
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Collomia grandiflora
LARGE-FLOWERED COLLOMIA


Higher Taxonomy
Family: PolemoniaceaeView DescriptionDichotomous Key
Common Name: PHLOX FAMILY
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 W. Patterson, family description, key to genera, except as noted
Scientific Editor: Robert W. Patterson, Thomas J. Rosatti.
Genus: CollomiaView DescriptionDichotomous Key


Common Name: TRUMPET FLOWER
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.
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
Unabridged Reference: Wilken et al. 1982 Biochem Syst Ecol 10:239--243
Collomia grandiflora Douglas ex Lindl.
NATIVE
Habit: Annual. Stem: erect, simple or in robust plants branched above; internodes at mid-plant reflexed-short-white-nonglandular-hairy. Leaf: basal lanceolate, toothed or not; cauline lanceolate to linear, entire, lower glabrous to minutely hairy, upper in age also with glands. Inflorescence: head, terminal, occasionally on axillary stems. Flower: calyx 7--10 mm, lobes lanceolate; corolla 15--30 mm (< 5 mm in cleistogamous flowers), yellow to orange, fading white; filaments attached at > 1 level, some > 1 mm, at least 1 anther exserted; pollen generally blue. Seed: 1 per chamber.
Ecology: Open areas; Elevation: 120--3050 m. Bioregional Distribution: CA-FP, GB; Distribution Outside California: to British Columbia, Idaho, Colorado, Arizona; naturalized in Europe. Flowering Time: Apr--Jun Note: Plants with only cleistogamous flowers have stem 1, < 10 cm, with 3--7 flowers at tip.
Jepson eFlora Author: Leigh A. Johnson & Dieter H. Wilken
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Leigh A. Johnson & Dieter H. Wilken 2012, Collomia grandiflora, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=20021, accessed on April 24, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 24, 2024.

Collomia grandiflora
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©2021 Barry Rice
Collomia grandiflora
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©2016 Keir Morse
Collomia grandiflora
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©2009 Barry Breckling
Collomia grandiflora
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©2015 Steve Matson
Collomia grandiflora
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©2005 Steve Matson

More photos of Collomia grandiflora
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Geographic subdivisions for Collomia grandiflora:
CA-FP, GB
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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).





 

Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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 (fruiting time in some monocot genera).