Russia Flora: Tree up to 25 m tall, up to 1 m in diameter. Terminal buds up to 7 mm long, often irregular in shape, dull green, brownish-green or even pale violet, glabrous or white-pubescent along scale margins. Shoots thick, brown or pale green, glabrous, with glaucous erasable waxy coating. Leaves odd-pinnate, with (3) 5-7 (9) leaflets, from broadly ovate and obovate to lanceolate-elliptical, 5-13 cm long, 2.5-7.5 cm wide, pointed at apex, with rounded or cuneate base, dentate or dentate-lobed, rarely almost entire-margined (terminal leaflet sometimes 3-lobed), glabrous (young leaves more or less tomentose on both sides). Plants dioecious; male inflorescences fasciculate, with thin pubescent pedicels reaching 6 cm long, perianth of half-fused sepals; female inflorescences pendulous racemes, perianth of sepals (sometimes petals present), staminodes short. Samaras 3.5-4.5 cm long, diverging at acute angle. (Table XIX).

Distribution: Bureya, Ussuri, South Sakhalin (Fig. 67). Cultivated in southern Soviet Far East and often naturalized. (Fig. 67). - Found in wastelands, parks, roadsides, etc. Flowering in May. Ornamental, but less striking than all Far Eastern species; fast-growing unpretentious species, but not long-lived. Pollen plant.

General distribution: North America, widely cultivated and naturalized in countries with temperate climate. - Described from North America (USA, Virginia).

Note: Widely cultivated in southern Soviet Far East, but poorly represented in herbaria from this territory.