genus Calycadenia

Member of tarweeds and allies (tribe Madieae)
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

Except for historical records that I'm ignoring, there are no other wild species of this genus in the bay area.

sticky western rosinweed
Calycadenia multiglandulosa

sticky western rosinweed
Calycadenia multiglandulosa

white rays

oregon western rosinweed
Calycadenia truncata

yellow rays

1 observed taxon / 1 unobserved taxon / 1 key

Chris’s observations: 3 (all are research grade)

Locations:

Mt. Tamalpais Watershed
Máyyan 'Ooyákma Coyote Ridge OSP
Santa Teresa CP

Months:

Aug.: 1
Sep.: 1
Oct.: 0
Nov.: 0
Dec.: 1

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Taxon info: iNaturalist – Calflora – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora