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Rhus
See list of 4 species in this genus-
1a. Leaves with 3 leaflets, the terminal leaflet elliptic to rhombic-ovate and coarsely dentate in the apical half [Fig. 343]; inflorescence of spike-like, lateral clusters from the previous season’s branchlet
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1b. Leaves with 7–31 leaflets, the terminal leaflet lanceolate to oblong or narrow-ovate and either ± entire or serrulate throughout; inflorescence a terminal panicle
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2a. Leaflets entire or with a few low, undulate teeth near the apical margin; rachis of leaf winged in distal portion; bud less than half encircled by the leaf scar
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2b. Leaflets serrulate; rachis of leaf not winged; bud nearly encircled by the leaf scar
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3a. Branchlets and petioles densely hirsute; drupes pubescent with hairs 1–2 mm long that are ± pointed at the apex
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3b. Branchlets and petioles glabrous, the branchlets sometimes glaucous; drupes pubescent with hairs ca. 0.2 mm long that are rounded at the apex
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Each photo represents one species in this genus.