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Philadelphus wootonii (Wooton's Philadelphus)
Erect shrub 1-2 m tall; leaves opposite, ovate, ovate-lanceolate or narrowly elliptic, margins entire, 10-18 mm long, 5-9 mm wide, sparsely hairy above, sparsely villous hairy below, petioles about 2 mm long; flowers usually solitary at the end of a ...