Hermannia hyssopifolia L.

Suffrutex, virgate with rigid branches, 36 cm-2 m high, sometimes over 2 m tall near river, new growth roughly and densely stellate-pubescent intermingled with tufted hairs on raised bases. Stipules varying in size from 2 mm long and subulate near base of plant to 12 mm long and 3 mm broad in upper portions. Leaves petiolate; blade broadest at or near apex and long-cuneate to base or oblong-elliptic, cuneate in lower half only, 9-30 mm long, 3-15 mm broad, toothed at apex only or in upper half, finely stellate-pubescent on both surfaces, sometimes densely so to velvety tomentose, glabrescent; petiole 5-8 mm long. Inflorescence of several bracteate cymes usually crowded at apices of branches and branchlets; bracts large, 3-or more-nerved from base, about 9x4 mm; bracteoles smaller, about 3-7 mm long, 1.5-3 mm broad; peduncles 4-9 mm long; pedicels 2-5 mm long. Calyx inflated, with 5 obtuse angles, subglobose to oblong-globose, narrowed at mouth, about 9 mm long, 6 mm diam., lobed almost to halfway but lobes broad and conniving, stellate-pubescent outside. Petals “lemon to yellow”, “citron-yellow”, “pale greenish” or “cream with red rim”, narrowly oblong, about 10 mm long, slightly narrowed about midway into a claw with inrolled margins, glabrous. Stamens with broad, hyaline filaments about 6 mm long; anthers 2 mm long, overlapping filaments at base, minutely ciliate. Ovary about 2.5 mm long, densely stellate-hairy; stipe 1.75 mm long; styles 3 mm long. Capsule enclosed in persistent calyx, about 6 mm long, 5-angled; stipe 1.5 mm long.

It is a subtropical plant.