| + | Erect or prostrate herbs, usually perennially rooted, but often annuals: lvs. lobed and finely dissected in nearly all the species: fls. racemose, often yellow, less frequently blue, purple or rose; petals 4, spurred as in the Dutchman's breeches; stamens 6, in 2 groups.— Ninety species, natives of the north temperate regions. They are all of easy cult. They prefer full sunlight but will grow in half-shade. Prop, by division or seed. |