Description

Key Characters:

Growth Form: Trees.

Stems:

Roots:

Leaves: Leaves compound (bipinnate or rarely pinnate) or simple. Opposite. Petiolate. Stipules absent.

Flowers: Flowers in terminal or axillary panicles. Flowers bisexual (perfect), usually large and showy. Calyx small, tubular, 5-toothed or truncate. Corolla somewhat bilabiate, blue to purplish blue (white in horticultural forms), campanulate–funnelform to funnelform, 5-lobed, glabrous externally. Fertile stamens 4, in 2 series, staminode 1, elongate, pubescent at apex; filaments attached to corolla tube, alternate with the lobes; anthers usually dithecal, opening by longitudinal slits. Ovary superior, 2-celled, placentation axile or in 1-celled ovary with 2 or 4 intruded parietal placentas; ovules numerous per cell, rarely 1, anatropous or hemitropous, often erect; style 1; stigma 2-lobed.

Fruit: Fruit usually a bivalved; dehiscent capsules; very often with a septum; rarely fleshy and indehiscent; an oblong to orbicular woody capsules strongly flattened at right angles to the septum. Seeds flat; often winged; endosperm absent; rarely present and oily; numerous; winged; the wings membranous.

Ploidy:

Habitat:

Elevation Range: