Adenandra obtusata Sond.

A 30-50 cm high, robust, much branched shrublet with erect stem and ascending branches, often becoming subglobose. Branches terete, puberulent, more or less glutinous when young; later glabrescent, defoliated, and densely covered with prominent leaf-scars forming a regular pattern; cortex light brown with blackish stripes between the persistent leaf-bases. Leaves densely set, patent to erecto-patent, imbricated, glabrous; petiole c. 1 mm long, appressed, pale yellowish; blade oblong to broadly oblong, 3.5-6.2 x 1.9-2.7 mm, coriaceous, obtuse, with thickened, revolute margins, dull green and smooth above, whitish-green with a broad green mid-vein below and with a few large glandular dots on the margins. Uppermost leaves crowded, more or less spathulate, forming an involucre. Flowers sessile to subsessile in 1-4-flowered terminal, glutinous beads which become hard and tough when dry: remnants of the previous season's heads often persistent in branch axils. Bracts spathulate to oblanceolate, 5.5-8.0 x 1.2-1.8 mm, obtuse, pale green, minutely ciliate in the lower half. Bracteoles lanceolate, 4.0-5.7 x 0.8-1.5 mm, canaliculate or obtusely carinate, pale green, minutely ciliate. Calyx 5.0-6.0 mm, divided almost to the base, olive-green, glabrous; segments lanceolate, 4.6-6.2 x 1.0-1.7 mm, subcanaliculate, acute, minutely ciliate. Petals pinkish outside, white inside, more or less obovate, 8-12 x 5.5-6.8 mm; claw very gradually widening as it merges into the broadly obovate, obtuse to truncate limb. Staminodes more or less uniformly broad, 1.8-3.8 mm long (rarely rudimentary), glabrous or somewhat pilose, apically slightly expanded and tipped by a sessile gland. Stamens: filaments narrow, tapering, usually glabrous, more or less translucent, 0.6-1.2 mm long at anthesis, later elongating; anthers broadly ovoid, basifixed, hardly versatile, 0.8-1.3 x 0.7 mm, glabrous, brown, lipped by a stipitate, stout, erect, capitate to pyramidal, reddish gland c. 0.5 mm across. Ovary globose, 1.0-1.4 mm across, glabrous, upper part tuberculate to sparsely papillate, green; style 0.6-1.0 mm at anthesis, stout, erect; stigma capitate, relatively large. Mature capsule nearly twice as long as the calyx, glabrous, rugose, light brown. Seeds ovoid to narrowly ovoid, 3.6-4.4 x 1.9-2.3 mm.