KEY TO THE SECTIONS AND THE SPECIES

1Young parts, twigs, stipules, petiole and nerves densely tomentose. Stipules digitately laciniate or pinnatilobed. Sepals 5-15 mm long. Petals 12-30 by 4-10 mm. Drupe usually indehiscent, sometimes finally septicidal.
1'Young parts, stipules, petiole and nerves glabrous or with some very small scattered hairs. Stipules simple, entire or dentate. Sepals up to 3.5(-4) mm long. Petals 2.5-3.5 by 1.5-2.5 mm. Drupe splitting into 5 pyrenes.