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Hemiptelea davidii Common name: 刺榆 ci yu [2] Family: Ulmaceae. The hard wood is used for utensils, the bark fiber is used for manufacturing staple rayon and sacks, the tender leaves make a good beverage, and oil is extracted from the seeds. [Tree Encyclopedia] [Trees TOC] [Ulmaceae TOC] [Ulmaceae Main Page Graphics] |
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| Shrubs or trees, to 10 m tall. Bark dark gray to grayish
brown. Branchlets grayish brown to brownish purple,
pubescent; spines 2-10 cm. Winter buds ovate, usually
3-clustered in leaf axil. Stipules oblong to lanceolate, 3-4
mm. Petiole 3-5 mm, pubescent; leaf blade elliptic,
elliptic-oblong, or rarely obovate-elliptic, 4-7 × 1.5-3 cm,
base ± cordate to rounded, margin with teeth obtuse, apex
acute to obtuse; secondary veins 8-12 on each side of
midvein. Fruit asymmetric, yellowish green, ovoid, 5-7 mm,
winged only on one side; seed elongate and curved; stalk
slender, 2-4 mm. Fl. Apr-May, fr. Sep-Oct. 2n = 56. Hill slopes, trail sides, planted around houses; below 2000 m. Anhui, Gansu, N Guangxi, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Zhejiang [Korea] [2]. |
Hemiptelea davidii,
Morton Arboretum acc. 444-83*1
| Sugarberry is native to the southeastern part of the
United States, ranging south from southeastern Virginia
to southern Florida; west to central Texas and including
northeastern Mexico; north to western Oklahoma and
southern Kansas; and east to Missouri, extreme southern
Illinois, and Indiana. It occurs locally in Maryland. HABITAT TYPES AND PLANT COMMUNITIES : In many areas, sugarberry occurs as scattered individuals. After disturbances, a seral sugarberry-American elm (Ulmus americana)-green ash (Fraxinus pennsylvanica) forest cover type may develop, with sugarberry as a codominant. This type intermixes with sweetgum (Liquidambar styraciflua)-willow oak (Quercus phellos) types, which contain essentially the same species in different densities. The sugarberry-American elm-green ash type occurs most often on the central coastal plain of the Gulf of Mexico, heavily concentrated on the Mississippi alluvial plain, and along major river basins. Sugarberry is susceptible to damage by ice, which breaks main stems and branches. Defoliation of sugarberry by hackberry butterfly (Asterocampa celtis) has been reported, though no tree death or crown die-back was observed. Sugarberry is used as an ornamental, even though leaf leachate can reduce growth of grasses under the trees due to the presence of ferulic, caffeic, and p-coumaric acids [1]. |
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Sugarberry cannot tolerate prolonged
flooding or water-saturated soils. Hook listed sugarberry as
weakly tolerant to waterlogging, and capable of living from
seedling to maturity in soils temporarily waterlogged for 1
to 4 weeks of the year, or about 10 percent of the growing
season. In forested wetlands sugarberry grows best in the
drier areas. Rising water levels (due to sea level rise,
flooding, impoundments etc.) will reduce sugarberry basal
area in these forests. . Pests |
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References
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