Spilanthes costata Benth.

Perennial herb, creeping, decumbent or sometimes straggling and then to 1.2 m high; stems semi-succulent, glabrous to pilose.. Leaves ovate, 1–9 cm long, 1–5 cm wide, base rounded to truncate, margins denticulate, apex acute, 3-veined from base, usually scabridulous.. Capitula axillary, solitary, on stalks to 6 cm long, ovoid, discoid; involucre 6–12 mm long; phyllaries in 2 unequal series, the outer 6–12 mm long, the inner 4–10 mm long, glabrous or ciliate, occasionally pilose.. Florets many, white, 2–2.7 mm long.. Achenes black, obovoid, 2.7–3.5 mm long, at maturity with cork-like margins, ciliate; pappus of 2(–4) subequal awns 0.9–2.1 mm long.. Fig. 153 (page 734).

Mostly near the sea.