Aristolochiaceae
Curious hardy herbaceous perennials, with bell-shaped, three-cleft perianths. They should be planted at the foot of the rockery, or in borders or woodlands, as they are not very showy, but are, nevertheless, worth growing, and easily propagated by divisions, in spring. A. canadense (Canadian).* fl. brown, campanulate, on a short peduncle, sometimes nearly buried. May and June. l. in pairs, broadly reniform. h. 1ft. Canada, &c., 1713.
A. caudatum (tailed).* fl. brownish-red, with attenuated or caudate calyx lobes. July. l. cordate-reniform, hooded, sub-acute, or bluntish, slightly pubescent. California, 1880. A rare and pretty species. A. europaeum (European).* Asarabacca. fl. dull brown, solitary, rather large, drooping; segments of perianth incurved. May. l. two on each stem, roundish-reniform, stalked, slightly waved. h. 1ft. England.