Collomia grandiflora

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Collomia grandiflora
Collomia grandiflora 20070810-1320-134.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Polemoniaceae
Genus: Collomia
Species: C. grandiflora
Binomial name
Collomia grandiflora

Collomia grandiflora is a western North American annual plant in the phlox family (Polemoniaceae), known by the common names grand collomia,[1] large-flowered mountain trumpet,[citation needed] and large-flowered collomia.[2] It is cultivated as an ornamental.

C. grandiflora plant, with purple stem and top & side flowerheads
5-petaled, apricot flower (top left), with blue anthers & 3-branched style


The plant produces an erect, hairy or fuzzy stem which may be red to green in color. Arranged at wide intervals along the stem are long, lance-shaped leaves, the lowermost sometimes toothed along the edges. Atop the stem is an inflorescence of several flowers in white to yellow or orange. Lower flowerheads may branch from the axils of the alternate leaves. Each tubular, flat-faced flower is 2 or 3 centimeters wide with 5 curving, light-colored petals and 5 stamens tipped with anthers which bear blue pollen. The fruit is a capsule containing sticky seeds.[3]


  1. ^ Laird R. Blackwell (2002). Sierra Nevada Wildflowers. Lone Pine Publishing. ISBN 1551052814.
  2. ^ Sierra Nevada Wildflowers, Karen Wiese, 2nd Ed., 2013, p. 106
  3. ^ Norman F. Weeden (1996). A Sierra Nevada Flora (4th ed.). Berkeley CA: Wilderness Press. ISBN 0-89997-204-7.

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