valerianaceo , a . ( Of Valerian ). 1. adj. Bot. Says of Angiosperm plants dicotyledons, herbaceous, annual or perennial, with opposite leaves without stipules, flowers in Terminal corymbs, white, red, yellow or blue, Corolla tubular, waning or RAM, with persistent calyx, leathery or membranous Fruit indehiscent, with a single seed without albumen; p. ej., valerian and the chews. U. t. c. s. 2. f. pl. Bot. Family of these plants. O RTOGR. ESCR. with initial may. .