Ephedra intermedia
Ephedra intermedia (binomen a Carolo Antonio de Meyer ex opere Alexandri Gustavi de Schrenk anno 1846 statutum) est frutex generis Ephedrae in aridioribus Asiae mediae regionibus florens. Sucus huius speciei cognatarumque E. gerardianae et E. procerae ad soma vel haoma conficiendum olim receptum esse eruditi multi censent, aliis abnuentibus.

Bibliographia 
 Harry Falk, "Soma I and II" in Bulletin of the School of Oriental and African Studies vol. 52 (1989) pp. 77-90 
 Rajesh Kochhar, "The Rgvedic Soma Plant" in ‘Medicine and Life Sciences in India (Novi Dillii, Centre for Studies in Civilization, 2001) pp. 724-739
 S. Mahdihasan, The History and Natural History of Ephedra as Soma. Islamabad, 1987
 C. A. von Meyer in Mémoires de l'Académie Imperiale des Sciences de St.-Pétersbourg, 6a ser., Sciences Mathématiques, Physiques et Naturelles vol. 5 (1846) p. 278
 Dieter Taillieu, "Haoma. I, Botany" in Encyclopaedia Iranica vol. 11 fasc. 6 (2003) pp. 659-662

Nexus externi 

 "Ephedra intermedia" apud PFAF

Species plantarum
Gnetophyta
Pabulata Asiae mediae
Plantae medicinales
Stimulantia
Taxa C. A. Meyer