Nesogenaceae

Abstract

Annual or perennial herbs or rarely shrubs or subshrubs to 2m, with weakly quadrangular stems, erect to prostrate and sometimes rooting at the nodes. Indumentum of unicellular or multicellular-uniseriate hairs, often gland-tipped, and with subsessile multicellular glands often present. Leaves decussate, estipulate, simple, entire to dentate or rarely deeply pinnatifid, petiolate to sessile, with base often narrowly acuminate, subglabrous, with often ciliate margins, to densely hairy. Inflorescence of small, often congested cymes, 1- to several-flowered, in axils of leaf-like bracts, or rarely congested to form a terminal thyrse, with bracts reduced, prophylls absent or rarely present, linear, inconspicuous. Flowers hypogynous, bisexual, perianth biseriate. Sepals 5, connate with 5 lobes, subequal, triangular, calyx-tube 7-10-nerved, infundibuliform, throat glabrous, calyx slightly accrescent,with lobes often spreading in fruit.