wartleaf ceanothus

Ceanothus papillosus

Member of ceanothus (genus Ceanothus)
buckthorn family (family Rhamnaceae)
dicots (class Magnoliopsida)
blue, purple in flowering plants

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• twig: green to gray-brown
• leaf blade:
• 11–50 mm long, 6–15 mm wide
• adaxially dark green, glandular-papillate (warty)
• abaxially paler, generally densely hairy
• margin rolled under, minutely gland-toothed, teeth 17–31
• Flower: deep blue

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Chris’s observations: 22 (all are research grade)

Locations:

• Big Basin SP: 7
• Castle Rock SP: 3
• Henry Cowell Redwoods SP - Fall Creek Unit: 3
• Henry Cowell Redwoods SP: 2
• Huddart CP: 2
• Sierra Azul OSP: 2
• UCSC Campus Natural Reserve: 2
• El Sereno OSP

Months:

• Apr.: 1
• May: 6
• Jun.: 7
• Jul.: 3
• Aug.: 1
• Sep.: 2
• Oct.: 1
• Nov.: 1

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

Bay Area species: iNaturalist – Calflora