spotted starthistle

(spotted knapweed)
Centaurea stoebe ssp. australis

Member of spotted starthistle (Centaurea stoebe)
star thistles (genus Centaurea)
thistles
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

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CalPhotos

• Sierra Azul & Mt. Umunhum

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Chris’s observations: none

Not all sites agree about the scientific name:

• Centaurea stoebe ssp. australis → iNaturalist
• Centaurea stoebe ssp. micranthos → Calflora – CalPhotos – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora