| 词条 | Ephedra pedunculata |
| 释义 |
| name = Clap-weed | genus = Ephedra | species = pedunculata | authority = Engelm. ex S. Watson }}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.[1][2] Most species of Ephedra (called "Mormon tea") are shrubs, but Ephedra pedunculata is a trailing or clambering woody vine up to {{convert|7|m|ft|abbr=on}} long. Bark is gray, becoming cracked with age. Leaves are opposite, up to {{convert|3|mm|in|abbr=on}} long. Microsporangial (pollen-producing cones) are 1–2 mm long, compared to less than 1 mm in many other species. Seed cones are {{convert|6|–|10|mm|in|abbr=on}} long, each containing 2 ellipsoid seeds {{convert|4|–|10|mm|in|abbr=on}} long.[3][4][5] References1. ^Flora of North America v 2 {{Taxonbar|from=Q16981680}}2. ^CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico D.F. 3. ^[https://www.biodiversitylibrary.org/page/3115502#page/171/mode/1up Watson, Sereno. Proceedings of the American Academy of Arts and Sciences 18: 157. 1883.] 4. ^Cutler, H. C. 1939. Monograph of the North American species of the genus Ephedra. Annals of the Missouri Botanical Garden 26: 373--427. 5. ^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. 4 : Ephedraceae|Plants described in 1883|Flora of Texas|Flora of Mexico |
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