Trees, to 15 m tall, d.b.h. to 32 cm, deciduous. Bark dark gray, irregularly and finely fissured. Branchlets grayish brown in first year, gray and glabrous in second year. Winter floral buds dark brown, cordate-globose, ca. 5 × 4 mm; bud scales lustrous. Leaf buds dark brown, conic, 3-4 × ca. 2.3 mm; bud scales pilose. Petiole pubescent; leaf blade obovate, 2-5.5 × 2-3.5 cm, abaxially with white tufted hairs in veins axils, margin doubly serrate; secondary veins 9-15 on each side of midvein. Inflorescences fascicled cymes, 20-30-flowered. Perianth tubular, 4-6-lobed, margin ciliate. Stamens 4 or 5. Stigmas 2-parted, pinnatifid. Samaras orbicular, broadly obovate, or ± orbicular, narrowly winged, glabrous except for stigmatic surface in notch; stalk ca. 2 mm. Seed at center of samara. Fl. Apr, fr. Jun.
Home