Cal campanulate, gamosepalous, 5-toothed; corolla funnelform, gamopetalous, deeply 5-lobed; stamens numerous, long-exserted, the capillary filaments connate below; fr broadly linear, flat, several-seeded; unarmed trees or shrubs with bipinnately compound lvs and pink or white fls in heads. 150, mainly tropical.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.