Croton L.
Leaves silvery-white beneath, with a close scaly tomentum, ovate to lanceolate, 5–8 cm long, entire or sinuate. Racemes 6–10 cm long. Fruit 6 mm diam. Tall shrubs. Widespread. Lower Blue Mts, e.g. Kurrajong. In or near RF. Fl. summer. Queensland Cascarilla Croton insularis
Leaves green on both surfaces, glabrous or nearly so, ovate to elliptic or lanceolate, 4–12 cm long. Racemes mostly 3–5 cm long. Flowers few in each cluster, Petals fringed with woolly hairs. Small tree or tall shrub. Coast and adjacent plateaus, e.g. Bulli; lower Blue Mts, e.g. Kurrajong. In or near RF. Fl. summer. Green Cascarilla Croton verreauxii