trumpets

genus Collomia

Member of phlox family (family Polemoniaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

Except for extremely rare examples that I don't expect to encounter, there are no other wild species of this genus in the bay area.

variableleaf collomia
Collomia heterophylla

variableleaf collomia
Collomia heterophylla

corolla lobes red purple or pink to white, throat white, tube greenish yellow

corolla 10–14 mm long

stem branching and spreading with long glandular hairs
lower cauline leaves 1–2-pinnate lobed (upper leaves lobed or entire)
uncommon

serpentine collomia
Collomia diversifolia

corolla petals red purple to pink, throat white and yellow, tube red or brown

corolla 9–12 mm long

stem branching and spreading with long glandular hairs
lower cauline leaves ±3-toothed (upper leaves entire)
very rare, mostly on Mt. Diablo

grand collomia
Collomia grandiflora

corolla dusty orange, fading to white

corolla 15–30 mm long

stem erect and simple with short nonglandular hairs
rare

1 observed taxon / 2 unobserved taxons / 1 key

Chris’s observations: 6 (all are research grade)

Locations:

Big Basin SP: 2
Monte Bello OSP
Nisene Marks SP
Sanborn CP
UCSC Campus Natural Reserve

Months:

May: 2
Jun.: 4

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Not all sites include this taxon:

genus Collomia → iNaturalist – Calflora – Jepson eFlora
not yet listed → FNA

Bay Area species: iNaturalist – Calflora