Description

Key Characters:

Growth Form: Rhizomatous perennial herbs.

Stems: Stems 1 to several, erect, becoming somewhat woody toward base, 5–10 dm long, black–dotted.

Roots:

Leaves: Leaves simple. Opposite. Blades linear to elliptic or oblanceolate; primary ones 10–30 mm long, 3–16 mm wide. Surfaces usually black–dotted. Margins entire. Sessile. Stipules absent.

Flowers: Flowers in paniculate cymes. Flowers bisexual (perfect). Sepals connate at base, the lobes lanceolate, 3–5 mm long, glandular punctate. Petals obovate, 5–8 mm long, black–dotted along margins. Stamens numerous, in 3 clusters. Ovary superior; styles 3(4).

Fruit: Capsules ovoid; 7–8 mm long. Seeds dark brown; cylindrical; ca. 1 mm long; the surface pitted.

Ploidy: 2n = 32; 34; 36; 48

Habitat:

Elevation Range: