||Leaves in whorls of (3)4-6 per node, rarely only opposite on rapidly growing branches, borne on upper 6-15 nodes, those at a node subequal, symmetrical, thick and firm-chartaceous to subcoriaceous, elliptic to narrowly elliptic or narrowly elliptic-oblanceolate, 5-25 cm long, 1-4 cm wide, upper surface with usually impressed veins, sparsely appressed hirtellous, lower surface with moderately raised veins, densely appressed velvety pilose, occasionally only sparsely so, margins entire or rarely serrulate, apex attenuate-acute to acuminate, base attenuate, petioles 1-7 cm long.
||Flowers 1-3(-10) in open cymes arising in the leaf axils and along stems to base, densely appressed pilose throughout, peduncles stout, (3-)10-60 mm long, pedicels stout, 8-30 mm long, bracts narrowly lanceolate to ovate, 8-16(-22) mm long; calyx actinomorphic or nearly so, green(?) when fresh, 11-13 mm long, enlarging to 15-18 mm long in fruit, cleft to base, the lobes thick and somewhat foliaceous, very narrowly elliptic to linear-lanceolate, somewhat unequal in size, densely appressed pilose, glabrous or rarely sparsely pilose toward apex within, margins somewhat revolute, apex acute to obtuse; corolla white, tube narrowly funnelform, curved, 16-19 mm long, ca. 6-7 mm in diameter medially, moderately pilose, upper lobes oblong-ovate, ca. 6-7 mm long, ca. 7-8 mm wide, lower lobes
elliptic to broadly elliptic, ca. 9-12 mm long, ca. 9-10 mm wide; ovary glabrous; style ca. 6-7 mm long, glabrous.