yellow mariposa lily

Calochortus luteus

Member of mariposa lilies (genus Calochortus)
lily family (family Liliaceae)
monocots (class Liliopsida)
yellow in flowering plants

corolla is deep yellow, with small red spots plus perhaps one central red blotch
nectary (yellow/orange spot amidst hair) is crescent-shaped or oblong

Toxicity of mariposa lily, sego lily (Calochortus spp.):
0 – Non-toxic.

Chris’s observations: 24 (all are research grade)

Locations:

Monte Bello OSP: 4
Henry Coe SP: 3
Almaden Quicksilver CP: 2
Andrew Molera SP: 2
Calero CP: 2
Coyote Lake / Harvey Bear Ranch CP: 2
Castle Rock SP
Edgewood Park & Natural Preserve
Foothills Nature Preserve, Palo Alto
Joseph D. Grant CP
Mt. Madonna SP
Rancho Cañada del Oro OSP
Skyline Ridge OSP
Stevens Creek CP
Sunol Wilderness RP

Months:

May: 12
Jun.: 10
Jul.: 2

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

Bay Area species: iNaturalist – Calflora