| a wild geranium, Geranium robertianum, having fernlike, scented leaves and reddish-purple flowers. |
| herb Robert n. A low-growing Eurasian plant (Geranium robertianum) having divided leaves and small reddish-purple flowers. [Middle English herbe Robert, from Old French erbe Robert, from Medieval Latin herba Robertī : Latin herba, herb + Robertī, genitive of Robertus, Robert.] |