heermann’s tarweed

Holocarpha heermannii

Member of genus Holocarpha
tarweeds and allies (tribe Madieae)
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
yellow in flowering plants

---

• anthers yellow to ± brown [usually yellow?]
• stem notably stalked-glandular
• phyllaries each with 25–50 pit-gland-tipped outgrowths and minutely sessile- or stalked-glandular and puberulent or minutely bristly
• heads 1 or in panicle- or raceme-like clusters
• uncommon in the east bay

---

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

Locations:

• Mt. Diablo SP: 3

Months:

• Nov.: 3

For more details, use advanced search.

---

Taxon info: iNaturalist – Calflora – CalPhotos – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora