(nat?)
Erect subshrubs 0.5-1.5 m tall, glabrate to cinereously stellulate pubescent, sometimes also with simple hairs. Leaf blades rhombic to elliptic or oblong-ovate, usually 6(—8) cm long, margins serrate above, entire toward base, base cuneate or sometimes obtuse, petioles much shorter than blades, stipules filiform to linear, 3-10 mm long. Flowers solitary in the leaf axils, sometimes appearing corymbose at the ends of the branches, pedicels filiform, 1—3(—4) cm long; calyx strongly ribbed, 4-7 mm long, the lobes acute to acuminate; petals yellow or yellowish orange, 7-10 mm long; staminal column included. Schizocarp depressed-ovate, apiculate, 4-6 mm in diameter, glabrate or stellulate pubescent, mericarps (7—)10(—14), 2.5-3.5 mm long, apical beaks or spines absent or 0.2-2.5 mm long, lateral and dorsal surfaces smooth to rugose-reticulate. Seeds brown, ca. 2 mm long, glabrous or white pubescent around the hilum. [2n = 14, 16, 18, 28, 36.] A poly-morphic, pantropical weed; in Hawaii nat-uralized in disturbed areas, 0-1,240 m, on all of the main islands. Reported by Hillebrand (1888) as possibly indigenous.— Plate 126.