Rosatti SMASCH notes: annot. as "seems intermediate between Serenana and fruticulosa"; evidently not treated in Munz, The Jepson Manual [Ed. 1]; indicated only for California by Kartesz
published after The Jepson Manual [Ed. 1]; indicated as present in, evidently endemic to California in protologue; indicated as rare in, endemic to California in Kartesz & Meacham.