Pimpinella
(said to be altered from bipinnula, twice pinnate; in allusion to the shape of the leaves). Burnet Saxifrage. Including Sisarum. ORD. Umbelliferae. A genus comprising about seventy species of herbs, broadly dispersed over the Northern hemisphere and South Africa, a few being also found in extra-tropical South America. Flowers white or yellow, in compound umbels; involucral bracts none, or rarely one or two. Leaves pinnate, or ternately or pinnately decompound, rarely undivided and toothed. The species are of no horticultural value. P. magna and P. Saxifraga (Burnet Saxifrage) are British plants. P. Anisum is the Aniseed-plant of commerce.