a. Bot. [f. as prec. + -OUS.] Of, pertaining to, or resembling a bur.
1707. Sloane, Jamaica, 38. To which follows several large rough lappaceous or echinated seeds.
1866. Treas. Bot., 660/1. Lappaceous, having the appearance of a lappa or bur; that is to say, of a round body covered with small hooks.
