Ulmus parvifolia, commonly known as Chinese elm, a landscape tree, seeds are harvested in October. 榔榆 lang yu.
Trees, to 25 m tall, d.b.h. to 100 cm, deciduous. Crown broadly orbicular. Bark gray to grayish brown, ± smooth, exfoliating into irregular scale-like flakes. Branchlets dark brown, densely pubescent when young, never winged. Winter buds reddish brown, ovoid-orbicular, glabrous. Petiole 2-6 mm, pubescent; leaf blade lanceolate-ovate to narrowly elliptic, lamina on two sides of midvein unequal in length and width, 2.5-5 × 1-2 cm, thick, abaxially pea green and pubescent when young, adaxially dark green, lustrous, and pubescent only on midvein, base oblique, margin obtusely and irregularly simply serrate, apex acute to obtuse; midvein depressed; secondary veins 10-15 on each side of midvein. Inflorescences fascicled cymes, 3-6-flowered. Pedicel very short, pubescent. Perianth funnelform; tepals 4. Samaras tan to brown, occasionally dark red-brown, elliptic to ovate-elliptic, 10-13 × 6-8 mm, glabrous except for pubescence on stigmatic surface in notch; stalk 1-3 mm, shorter than perianth, sparsely pubescent; perianth persistent or tardily deciduous. Seed at center or toward apex of samara. Fl. and fr. Aug-Oct. 2n = 28.
Ulmus parvifolia seeds
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- Below 800 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Zhejiang [India, Japan, N Korea, Vietnam].