Fleshy, perennial herb, straggling to 50 cm, monoecious. Leaves with petiole strigose; lamina broadly and obliquely oblanceolate-elliptic, 8–18 cm long, 3.5–9 cm wide, unequal at base, serrate with teeth 3–6 mm long, acute to subacuminate in outline, nearly glabrous to usually strongly strigose, especially on midrib below, with abundant linear cystoliths in upper and lower epidermis. Inflorescences rounded; male inflorescence capitate, 1.5–2.5 cm diam. on peduncles 1–6 cm long; female 1–1.5 cm diam., sessile; involucral bracts strigose. Achene 2.5–3 mm long.
Widespread in the southern forested areas of the Island, but not common, generally preferring mesic habitats, e.g. moist shaded sites, creek gullies, cliffs with waterfalls. Perhaps less common now due to the depredations of feral pigs. Often forms dense patches.
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