木贼麻黄 mu zei ma huang (Fu et al. 1999).
Syn.: Ephedra shennungiana Tang (Fu et al. 1999).
Shrubs, up to 1(-1.5) m tall, erect or partially procumbent, with thick, well developed woody stems. Herbaceous branchlets straight, long, slender, blue-green or gray-green with a powdery bloom, 1-1.5 mm in diameter, rigid, internodes short, 1-3 cm × 1-1.5 mm, finely furrowed. Leaves opposite, brownish, 1.5-3 mm long, connate for ca. 3/4 their length, free part bluntly triangular. Pollen cones solitary or in clusters of 3 or 4 at nodes, sessile or shortly pedunculate; bracts in 3 or 4 pairs, connate for ca. 1/3 their length; staminal column slightly exserted, with 6-8 sessile anthers. Seed cones usually opposite at nodes, shortly pedunculate, elongate-ovoid or ovoid at maturity, 8-10 × 4-5 mm; bracts in 3 pairs, apical pair connate for ca. 2/3 their length, red and fleshy at maturity; integument tube to 2 mm, straight or slightly curved, slightly exserted. Seeds usually 1, elongate-ovoid, 5-7 × 2.5-3 mm. Pollination Jun-Jul, seed maturity Aug-Sep. 2n = 14 (Fu et al. 1999).
Afghanistan; China: Gansu, Hebei, Nei Mongol, Ningxia, Qinghai, Shanxi, and Xinjiang; Kazakhstan; Kyrgyzstan; Mongolia; Russia; Tajikistan; Turkmenistan; Uzbekistan. Grows in dry and rocky places at 800-3000 m elevation (Fu et al. 1999).
"This species has medicinal properties" (Fu et al. 1999).
Bunge, Mém. Acad. Imp. Sci. St.-Pétersbourg, sér. 6, Sci. Math. 7: 501. 1851.
Last Modified 2017-12-29