Malacothamnus chilensis (Gay) Krapov. (1952) (Originally described as Sphaeralcea chilensis by Gay (1846) and transferred to Malacothamnus by Krapovickas 1952. This was the only South American member of an otherwise Californian and Baja Californian genus (See Tate 2003))
Shrubs to small trees to 3 m tall. Leaf margin crenate. Inflorescence of flowers in few-flowered axillary cymes or clustered in dense axillary glomerules, sessile to pedicellate 3-20 mm. Epicalyx present, of 2-3 lobes, free, calyx costae present. Corolla light to dark mauve, apically notched, united at the base to form a 1-2 cm long corolla tube. Staminal column apex unknown. Styles 7-12. Fruits schizocarpic. Mericarps reniform, completely dehiscent, awns absent or if present then up to 4 mm long and persistent on each half of the separated mericarp single-seeded. Endoglossum presence or absence unknown.