Only known from a few sites in San Francisco and the East Bay . Note the narrow pink and white petals , the one-sided calyx , the red base to the petals , the leaf forming a channel . Some of these characteristics vary a little . The similar Clarkia rubicunda grows nearby .
Common along parts of East Ridge Trail .
P. da Silva, A. Pence, A. Young, F. Leist, M. A. Garcia, M. Camarillo;
Weird to see one of these still in bloom.