A N F Keys
1 Plants not clonal, in flower 30−100 cm tall; shoots with both basal and cauline leaves; pistil 1
2 Stamens 5; styles 2 .. Boykinia
2' Stamens 10; styles 3 .. Lithophragma
1' Plants clonal, in flower mostly 15−30 cm tall; shoots with only basal leaves; pistils 2 .. Micranthes californica [pics]
1 Blades mostly broadly ovate and evidently palmately lobed, hairy with scattered glandular hairs but not viscid; pedicels 3−5 mm long (shorter on basal flowers); petals 3.5−4.2 mm long, obviously exceeding calyx and with 1 petal longer .. Boykinia occidentalis [pics]
1' Blades roundish and scarcely lobed to unlobed, densely glandular-hairy and viscid; pedicels to 2 mm long; petals < 2 mm long and equal, barely exceeding calyx .. Boykinia rotundifolia [pics]
Lithophragma Nutt.
WOODLAND STAR
1 Cauline leaves strictly alternate; blade upper surface sparsely hirsute and lower surface strigose with scattered glandular hairs; aerial bulbils absent in basal rosette; petals unequally 3-lobed to 3-toothed and claw 1−1.5 mm long; seeds essentially smooth .. Lithophragma affine [pics]
1' Cauline leaves opposite; blade surfaces short-glandular hairy; aerial bulbils present in basal rosette; petals unlobed and claw about 2 mm long; seeds densely spinescent .. Lithophragma cymbalaria [pics]
The text of the above keys used with permission from
A Naturalist's Flora of the Santa Monica Mountains and Simi Hills, California
© Copyright
Barry A. Prigge and Arthur C. Gibson
2013