Onagraceae
Epilobium obcordatum
rock willowherb
Epilobium rigidum
Siskiyou Mountains willowherb
Gayophytum diffusum
spreading groundsmoke
Oenothera biennis
common evening primrose
Oenothera caespitosa
stemless evening primrose
Oenothera pallida
pale-stemed evening primrose
Oenothera villosa
hairy evening primrose