Description
Key Characters:
Growth Form:
Diminutive annual herbs (in africa also perennial herbs or shrubs).
Stems:
Stems many-branched.
Roots:
Leaves:
Leaves simple or sometimes compound.
Opposite.
Base leaves connate at base into a shallow cup around the stem.
Surfaces often with a waxy bloom; Blades often fleshy.
Margins entire.
Veins not conspicuous.
Sessile.
Stipules absent.
Flowers:
Flowers in cymes or sometimes solitary.
Flowers bisexual (perfect), minute, axillary, erect, 3–4(–5)-merous.
Calyx (3)4(5)-lobed.
Corolla of (3)4(5) petals (equal in number to sepals), distinct or connate at base.
Stamens as many as and alternate with the petals, in 2 whorls; anthers dithecal, opening by longitudinal slits.
Ovary superior or partly inferior, 3–5, distinct, carpels as many as sepals, distinct or connate at base, rarely connate to middle, each carpel with a scale-like nectary at base, placentation marginal or axile; ovules numerous, occasionally 1 to few per carpel, anatropous; style 1, short, subulate.
Fruit:
Follicles.
Seeds minute; 1–12 per follicle; endosperm scanty or absent.
Ploidy:
Habitat:
Elevation Range: