Chironia melampyrifolia Lam.

Straggling suffrutex somewhat viscid in parts; branches more or less quadrate; leaf bases decurrent as ridges or narrow wings, in part microscopically lineate with dull or shiny striae or ducts. Leaves ovate-acuminate to narrowly lanceolate-acuminate, cordate at the base, acute, spreading to reflexed, apex hooked, 1.5-3 cm long and 1-11 mm broad, more or less viscid, microscopically lineate with shiny striae, upper surface of dried specimen wrinkled, lower surface with prominent midrib. Inflorescence terminal on the branchlets, flowers solitary or in simple di-or monochasial cymes. Calyx 8-16 mm long, as long as or longer than the corolla-tube, 5-10 keeled or winged, lobed to just below the middle or a little deeper, lobes deltoid attenuate to an acute apex, navicular, keeled, keel decurrent on the tube, keels from the sinuses also sometimes present. Corolla usually bright pink, very occasionally whitish, 2-4-4 cm long; tube 7-12 mm long, cylindrical, very slightly narrowed just below the rim, strongly ribbed and often thickened in the throat at the insertion of the stamens, appearing whitish on the outside in dried specimens; lobes 1.5-2.5 cm long, 0.5-1.4 cm broad, oblong-elliptic, somewhat cuneate at the base and broadly acuminate at the apex to an acute apicule. Stamens inserted just below the rim on the more or less thickened throat of the corolla; filaments about 4 mm long linear, broadening towards, and often thickened at the base; anthers straight, 6-8 mm long. Ovary glutinous, 7-10 mm long, acuminate into the 10-14 mm long style which is curved at the apex; stigma terminal up to 1 mm diam. Capsule glutinous, pointed, 1.2-1.7 cm long, splitting at the apex.