These easy-to-grow perennials resemble lupines (Lupinus). Silvery leaves are divided into leaflets that spread like fingers on a hand; erect, spikelike clusters of sweet peashaped yellow flowers appear in spring. Because of their tendency to spread by under- ground rhizomes, they are best in informal or wild gardens. Need little care. Somewhat drought tolerant.
T. chinensis. CHINESE BUSH PEA. Native to China. Grows 2 ft. high, 112 ft. wide, with 8-in. flower spikes.
T. villosa (T. caroliniana). CAROLINA BUSH PEA. Native to the Carolinas and Georgia. To 34 ft. tall, 2 ft. wide, with 10-in. flower clusters. More heat tolerant than T. chinensis.