herb robert

Geranium robertianum

Member of geraniums and cranesbills (genus Geranium)
geranium family (family Geraniaceae)
dicots (class Magnoliopsida)
purple in flowering plants

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• stem hairs ± sparse
• leaf blade 3.5–10 cm wide, divided > 90% to base or midrib
• 5 leaf segments, ± sessile to short-stalked, pinnately lobed to dissected
• pedicel 5–20 mm
• petals 10–14 mm, rounded, pink to red-purple [often shorter]
• anthers ± purple [sometimes orange?]
• stigma lobes rose to purple

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Chris’s observations: 6 (5 are research grade)

Locations:

• Purisima Creek Redwoods OSP: 2
• Sierra Azul OSP: 2
• Coal Creek OSP
• Wilder Ranch SP

Months:

• May: 5
• Jun.: 0
• Jul.: 0
• Aug.: 0
• Sep.: 1

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Not all sites include this taxon:

• Geranium robertianum → iNaturalist – Calflora – CalPhotos – Jepson eFlora
• not yet listed → FNA

Bay Area species: iNaturalist – Calflora