Cor funnelform, nearly regular, 5-lobed; stamens 5, barely exsert; hypanthium slender, prolonged above the bilocular, multiovulate ovary into a persistent beak; style elongate, exsert; stigma capitate; fr a conic or slender septicidal capsule; low shrubs with opposite, serrate lvs and yellow fls in terminal or subterminal cymes. 3, N. Amer.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
