Description

Key Characters:

Growth Form: Trees or shrubs, latex present.

Stems: Branches whorled, mostly 4 or 5 together.

Roots:

Leaves: Leaves simple. Whorled, rarely opposite. Lateral veins numerous, ending in a marginal vein. Petiolate.

Flowers: Flowers in cymes terminal, usually 1–5 in thyrses or compound umbels, terminal. Flowers bisexual (perfect), white, yellow, or pink. Calyx without glands inside, lobes connate at base. Corolla salverform, tube cylindric, dilated in distal half, pubescent inside, lobes overlapping to right or left. Stamens 5, included, inserted near or above middle of corolla tube; filaments short; anthers ovate, free from pistil head, not caudate; disc absent or of scales. Pollen granular. Ovary superior, 2, distinct or connate; ovules numerous; styles 1, apex 2-cleft and not stigmatic; stigma at pistil base.

Fruit: Follicles 2; free or connate. Seeds oblong or linear; long bearded at both ends; endosperm thin; cotyledons up to twice as long as radicle; radicle terete (cylindrical).

Ploidy:

Habitat:

Elevation Range: