alameda thistle

Cirsium quercetorum

Member of plume thistles (genus Cirsium)
thistles
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

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CalPhotos

• abaxial face of outer and middle phyllaries without sticky-resinous ridge
• margins of outer phyllaries ± entire
• outer and middle phyllaries lance-linear to ovate, appressed; tip-spines 1–12 mm, generally ascending to erect
• scattered very near the pacific coast

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Chris’s observations: none

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

Bay Area species: iNaturalist – Calflora