Geranium caespitosum E. James Geranium caespitosum E. James, Account Exped. Pittsburgh (Philad. Ed.) 2: 3. 1823 sec. Aedo 2012=Geranium gracile Engelm., Mem. Amer. Acad. Arts n.s., 4: 27. 1849 syn. sec. Aedo 2012