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Ephedra pedunculata : ウィキペディア英語版 | Ephedra pedunculata
''Ephedra pedunculata,'' common name Clap-weed, vine Mormon tea or Comida de Vívora, is a plant species native to southern Texas and to Mexico as far south as Zacatecas. It grows in sandy or rocky slopes and outcrops.〔(Flora of North America v 2 )〕〔CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico D.F.〕 Most species of ''Ephedra'' (called "Mormon tea") are shrubs, but ''Ephedra pedunculata'' is a trailing or clambering woody vine up to 7 m (23 feet) long. Bark is gray, becoming cracked with age. Leaves are opposite, up to 3 mm (0.12 inches) long. Microsporangial (pollen-producing cones) are 1–2 mm long, compared to less than 1 mm in many other species. Seed cones are 6–10 mm (0.24-0.40 inches) long, each containing 2 ellipsoid seeds 4–10 mm (0.16-0.40 inches) long.〔(Watson, Sereno. Proceedings of the American Academy of Arts and Sciences 18: 157. 1883. )〕〔Cutler, H. C. 1939. Monograph of the North American species of the genus ''Ephedra.'' Annals of the Missouri Botanical Garden 26: 373--427.〕〔Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.〕 ==References==
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