Information

Erect annual or perennial herb or subshrub, up to c. 1 m tall; stems densely and softly tomentose to pubescent with spreading hairs. Leaves with 1–5.5 cm long petiole; blade ovate to suborbicular, 2–8 x 1.5–8 cm, cordate to truncate at the base, acute to rounded at the apex, with dentate margins, pubescent to tomentose. Flowers in clusters, mostly towards end of lateral branches or forming terminal panicles; pedicels up to 25 mm long. Calyx 5–8 mm long, enclosing the ripe mericarp. Petals 8–12 mm long, yellow. Mericarps 8–10, 3–5 mm long and with a pair of 2.5–6 mm long retrorsely barbed awns; lower part of back and sides reticulately sculptured.