Lobelia pedunculata

Prostrate to decumbent, glabrous to minutely pubescent mat-forming perennial; stems rooting at nodes. Leaves ovate to orbicular, 2–13 mm long, 1.5–10 mm wide, sometimes reddish-purple, margins toothed, base obtuse; petiole 0–1.5 mm long. Flowers irregularly spaced, male, female and bisexual flowers superficially similar; pedicels 3–100 mm long, glabrous to minutely pubescent. Calyx-lobes 0.8–3 mm long, entire or toothed; corolla obviously to weakly zygomorphic, 4–10 mm long, white, blue or mauve; lobes subequal, elliptic to oblanceolate-obovate, 2–6 mm long, 0.5–3 mm wide, tube 2–4 mm long, split to within c. 0.7 mm or less of base, glabrous or with fine retrorse hairs internally towards base; filaments 1.5–3 mm long, anther tube c. 1–1.5 mm long in male and bisexual flowers, c. 0.7–1 mm long in females, seta of 2 lower anthers 0.3–0.5 mm long. Fruit c. ellipsoid to globose, slightly compressed, 3–8 mm long; seeds slightly asymmetrical, ellipsoid, compressed, 0.5–0.85 mm long, light brown, reticulate, with elongate alveoles. Flowers and fruits all year.