Description

Key Characters:

Growth Form: Vines or liana.

Stems: Stems herbaceous toward tips, woody near base, puberulent, becoming glabrate, older stems with exfoliating bark.

Roots:

Leaves: Leaves simple. Alternate. Blades cordate. Apex acuminate. Base acute, cordate to truncate, petiolate, subsessile, or sessile. Upper surfaces glabrate; lower surfaces covered with small, black, glandular hairs. Margins entire. Petioles ca. ½ – 2/3 as long as blades. Stipules absent.

Flowers: Flowers solitary or in simple, rarely more than 3–flowered, cymes, pedicels more than 2 cm long, rarely shorter. Flowers bisexual (perfect), actinomorphic, 5-merous. Calyx of 5 sepals, distinct, imbricate, subcoriaceous, subequal, orbicular, with black glandular hairs, persistent in fruit and coriaceous, occasionally accrescent. Corolla of 5 fused petals; petals red, scarlet, purplish red, or mauve, funnelform, the limb usually entire. Stamens 5, distinct, included; filaments glandular pubescent at base, filiform above, inserted on corolla tube base alternate with corolla lobes; anthers oblong, dithecal, extrorse. Ovary superior, 2-celled; ovule placentation basal or basal-axile; style 1, longer than stamens, filiform, simple or bifid; stigma capitate, 2-lobed, the lobes globose.

Fruit: Capsules dark brown; subglobose; indehiscent; thin–walled; surrounded by the enlarged; fleshy sepals. Seeds 1–4; grayish brown; ovoid; minutely puberulent.

Ploidy:

Habitat:

Elevation Range: