Description
Key Characters:
Growth Form:
Herbs, shrubs, or trees, clonal from rhizomes, rooting from decumbent branches, or aclonal; hairs 1-celled, arms either short and ornamented with micropapillae and calcium carbonate crystals, or long, erect, curling, and twisted.
Stems:
Stem sympodial, rarely monopodial.
Roots:
Rooting from decumbent branches.
Leaves:
Leaves simple.
Alternate or opposite.
Blades lanceolate to broadly ovate.
Lower surfaces often papillate.
Veins pinnate.
Petiolate or sessile.
Stipules absent.
Flowers:
Flowers in inflorescences: bracts adnate to inflorescence branches, distal portion either minute and caducous or expanding into showy, nonchlorophyllous involucres. pedicels present or absent.
Flowers bisexual (perfect) [unisexual]; perianth and androecium epigynous; hypanthium completely adnate to ovary. Hypanthium turbinate or urceolate.
Calyx of 4 fused sepals.
Corolla of 4(–5) petals; petals distinct, valvate spreading or recurved, usually cream, rarely purple.
Stamens exserted; anthers dorsifixed, versatile.
Ovary inferior, carpels 1, [1–]2[–4]-carpellate, [1–]2[–4]-locular, placentation apical; ovules 1 per locule, apotropous to epitropous; style 1; stigmas 2.
Fruit:
Drupes globose; subglobose; or ellipsoid; slightly fleshy.
Seeds 1(–2) per fruit.
Ploidy:
Habitat:
Elevation Range: