(Alonzo Zanoni, Spanish botanist). Scmph ularidcezr. Trop. Amer. plants, cult. as annuals in the open, or rarely grown in pots. They are tender, and need protection from frost. Seeds are usually started under glass in the N.,although plants bloom well from seeds sown directly in the open. Use only finely prepared soil. Fls. showy; plant of good habit-. The corolla is very irregular and turned upside down by the twisting of the pedicel, bringing the larger lobe uppermost: stamens 4: lvs. (at least below) opposite or in 3's. Cult. species mostly from Peru and Mex.