bermuda buttercup

Oxalis pes-caprae

Member of woodsorrels (genus Oxalis)
woodsorrel family (family Oxalidaceae)
dicots (class Magnoliopsida)
yellow in flowering plants

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• stem generally underground
• leaves in loose, ± basal rosette; petiole < 12 cm
• leaflets < 3.5 cm, often purple-spotted, abaxially hairy
• inflorescence: umbel-like, < 20-flowered; peduncle < 30 cm
• sepals < 7 mm, lanceolate to oblong, tips often with 2 orange tubercles
• petals < 2.5 cm, yellow

Toxicity of fire fern, lady's sorrel, oxalis, sorrel, shamrock (Oxalis spp.):
2b – These plants contain oxalate crystals but they do not cause immediate problems. These plants have tiny crystals that lodge in the kidneys and can cause kidney damage as well as nausea, vomiting and diarrhea.

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Chris’s observations: 36 (all are research grade)

Locations:

• Fremont Older OSP: 7
• Edgewood Park & Natural Preserve: 4
• Alum Rock Park, San Jose: 3
• Waterdog Lake & Open Space: 3
• Dry Creek Pioneer RP: 2
• Pleasanton Ridge RP: 2
• Sierra Azul OSP: 2
• Almaden Quicksilver CP
• Coyote Hills RP
• Crystal Springs Regional Trail
• Fort Ord NM
• Guadalupe River Trail
• San Pedro Valley CP
• Santa Clara Central Park
• Santa Teresa CP
• Stevens Creek CP
• Sweeney Ridge National Recreation Area
• Wilder Ranch SP
• Windy Hill OSP
• Wunderlich CP

Months:

• Jan.: 5
• Feb.: 9
• Mar.: 15
• Apr.: 5
• May: 2

For more details, use advanced search.

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

Bay Area species: iNaturalist – Calflora