Description

Key Characters:

Growth Form: Shrubs or small trees.

Stems:

Roots:

Leaves: Leaves compound (odd-pinnate, trifoliate) or simple. Opposite. Leaflet margins serrate. Petiolate. Stipules absent.

Flowers: Flowers in terminal racemes or racemose panicles. Flowers bisexual (perfect), usually large and showy. Calyx cup-like, with 5 shallow, deltate lobes. Corolla zygomorphic, 5-lobed, yellow or orangish, tubular–campanulate, glabrous externally. Stamens 4, with an additional staminode, occasionally only 2 Stamens fertile with 3 staminodes; filaments attached to corolla tube, alternate with the lobes; anthers usually dithecal, opening by longitudinal slits. Ovary superior, 2-carpellate, with as many cells, sometimes 1-celled or 4-celled, placentation axile or in 1-celled ovary with 2 or 4 intruded parietal placentas; ovules anatropous or hemitropous, often erect; style 1; stigma 2-lobed.

Fruit: Fruit a smooth linear capsules; somewhat compressed parallel to the septum; but dehiscing at right angles to it. Seeds thin; 2–winged; the wings hyaline–membranous and sharply demarcated from the seed body; endosperm absent; rarely present and oily.

Ploidy:

Habitat:

Elevation Range: