Ephedra kardangensis P.Sharma & P.L.Uniyal – western Himalayas Ephedra khurikensis P.Sharma & P.L.Uniyal – western Himalayas Ephedra laristanica Assadi – Iran Ephedra likiangensis Florin – Guizhou, Sichuan, Tibet, Yunnan Ephedra lomatolepis Schrenk – Kazakhstan, Tuva region of Siberia Ephedra major Host – Mediterranean, Middle East, Central Asia; from Canary Islands to Kashmir Ephedra milleri Freitag & Maier-St. – Oman, Yemen Ephedra minuta Florin – Qinghai, Sichuan Ephedra monosperma J.G.Gmel. ex C.A.Mey. – Siberia, Mongolia, much of China including Tibet and Xinjiang Ephedra multiflora Phil. ex Stapf – Chile, Argentina Ephedra nevadensis S.Watson – Nevada Ephedra, Nevada Jointfir, Nevada Mormon-tea – Baja California, California, Arizona, Nevada, Utah, Oregon Ephedra ochreata Miers – Argentina Ephedra oxyphylla Riedl – Afghanistan Ephedra pachyclada Boiss. – Middle East from Sinai and Yemen to Pakistan Ephedra pangiensis Rita Singh & P.Sharma Ephedra pedunculata Engelm. ex S.Watson – Vine Ephedra, Vine Jointfir – Texas, Chihuahua, Coahuila, Durango, San Luis Potosí, Nuevo León, Zacatecas Ephedra pentandra Pachom. – Iran Ephedra procera Fisch. & C.A.Mey. − Iran, Caucasus Ephedra przewalskii Stapf – Central Asia, Mongolia, Pakistan, Gansu, Inner Mongolia, Ningxia, Qinghai, Tibet Ephedra pseudodistachya Pachom. – Siberia, Mongolia Ephedra regeliana Florin – Xi Zi Ma Huang – Central Asia, Siberia, Pakistan, Xinjiang Ephedra rhytidosperma Pachom., syn. E. lepidosperma C.Y.Cheng – Gansu, Inner Mongolia, Ningxia, Mongolia Ephedra rituensis Y.Yang, D.Z.Fu & G.H.Zhu – Qinghai, Xinjiang, Tibet Ephedra rupestris Benth. – Ecuador, Peru, Bolivia, Argentina Ephedra sarcocarpa Aitch. & Hemsl. – Pakistan, Afghanistan Ephedra saxatilis (Stapf) Royle ex Florin Ephedra sinica Stapf – Cao Ma Huang, Chinese ephedra – Mongolia, Siberia, Primorye, Manchuria Ephedra somalensis Freitag & Maier-St. – Somalia, Eritrea Ephedra strobilacea Bunge – Iran, Central Asia Ephedra sumlingensis P.Sharma & P.L.Uniyal – western Himalayas Ephedra tilhoana Maire – Chad Ephedra torreyana S.Watson – Torrey's Ephedra, Torrey's Jointfir, Torrey's Mormon-tea, Cañutillo – Nevada, Utah, Colorado, Arizona, New Mexico, Texas, Chihuahua Ephedra transitoria Riedl – Iraq, Syria, Palestine, Saudi Arabia Ephedra triandra Tul. − Bolivia, Argentina Ephedra trifurca Torrey ex S.Watson – Longleaf Ephedra, Longleaf Jointfir, Longleaf Mormon-tea, Popotilla, Teposote – California, Arizona, New Mexico, Texas, Chihuahua, Sonora, Baja California Ephedra trifurcata Zöllner Ephedra tweedieana C.A.Mey. – Brazil, Argentina, Uruguay Ephedra viridis Coville – Green Ephedra, Green Mormon-tea – California, Nevada, Utah, Arizona, New Mexico, Colorado, Wyoming, South Dakota, Oregon Ephedra vvedenskyi Pachom. – Iran, Caucasus, Turkmenistan Ephedra yangthangensis Prabha Sharma & Rita Singh – Yangthang to Ka, Leo, Nako, Chango,