Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Pseudotrillium rivale is a species of the Trilliaceae family. It is the only species in the genus Pseudotrillium. P. rivale occurs in the Siskiyou Mountains of Oregon and California, often on soils of ultramafic origin. This spring-flowering herb grows 4-15 centimeter tall; its single flower has purple spots on its three petals, which are otherwise white.

Plant type

Perennial herb, Geophyte

Size

2 - 8 in Tall

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Color

Purple, White

Sun

Partial Shade

Site type

moist wooded slopes

Plant communities

Yellow Pine Forest