Lobelia purpurascens

Prostrate to ascending, dioecious perennial; stems sometimes zigzagged, occasionally rooting at nodes. Leaves lanceolate to ovate, 4–28 mm long, 2.5–12 mm wide, usually minutely pubescent above, often purplish beneath, margins toothed, base obtuse; petiole to 2 mm long. Flowers irregularly spaced; pedicels 10–70 mm long, usually longer than leaves, glabrous or rarely minutely pubescent. Calyx-lobes 1.5–3.2 mm long, at least some toothed at base; corolla zygomorphic, (6–)8–12 mm long, white tinged pink or purplish on outside of the tube and lobes, usually white to cream on inner surfaces; upper 2 lobes linear-oblanceolate to linear-lanceolate, 3–4.5 mm long, 0.4–1 mm wide, falcate, lower 3 lobes oblanceolate, (2.5–)4–6 mm long, (1–)1.2–3.5 mm wide, tube 4–7 mm long, split to within c. 0.5 mm of base, with fine retrorse hairs internally; filaments 3.5–5 mm long, anther tube 1.2–1.6 mm long in male flowers, 0.9–1.2 mm long in females, seta of 2 lower anthers 0.2–0.4 mm long. Fruit broadly ellipsoid to globose, (3–)5–10 mm long; seeds ellipsoid, slightly compressed, 0.8–0.9 mm long, brown, alveoles c. isodiametric (seed surface appearing pitted). Flowers Nov.–Jun.