common mouse-ear chickweed

Cerastium holosteoides

Member of mouse-ear chickweeds (genus Cerastium)
pink family (family Caryophyllaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

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• stems both non-flowering/mat-forming and flowering/±erect
• petals 4–5 mm, 1.5 mm < to 0.5 mm > sepals
• calyx 4.5–7 mm, hairy, ascending
• scarious margin of most outer sepals 0.2–0.6 mm wide

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Chris’s observations: none

Not all sites agree about the scientific name:

• Cerastium holosteoides → iNaturalist
• Cerastium fontanum ssp. vulgare → Calflora – CalPhotos – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora