The Gymnosperm Database

 

Valid HTML 4.01 Transitional

Conservation status

Ephedra sinica

Stapf 1927

Common names

草麻黄 cao ma huang [Chinese] (Fu et al. 1999).

Taxonomic notes

Syn.: Ephedra ma-huang Liu. Two varieties, the type and Ephedra sinica var. pumila Florin 1933 (Fu et al. 1999).

Description

"Subshrubs small, to 40 cm, sparsely branched; woody stems short or prostrate; branchlets straight or curved, sometimes slightly involute, internodes (2.5-)3-4(-5.5) cm × ca. 2 mm, shallowly furrowed. Leaves opposite, connate for 1/3-2/3 their length, free part subulate to narrowly triangular, to 5 mm, apex sharply pointed. Pollen cones sessile or pedunculate, solitary or in clusters at nodes, rarely terminal; bracts in 4 pairs, margin very narrow, membranous, apex obtuse or subacute; anthers 7 or 8, sessile or shortly stipitate. Seed cones terminal or axillary, solitary, oblong-ovoid or subglobose, ca. 8 × 6-7 mm at maturity; bracts in 4 pairs, connate for 1/2–3/4 their length, red and fleshy at maturity; integument tube 1-2 mm, straight or slightly curved. Seeds usually 2, black-red or grayish brown, concealed by or equaling bracts. Pollination May-Jun, seed maturity Aug-Sep. 2n = 28" (Fu et al. 1999).

Var. pumila differs from var. sinica "in its very low growth habit, often curved or involute branches, shorter nodes, and seed cones with only 2 or 3 pairs of bracts" (Fu et al. 1999).

Distribution and Ecology

Mongolia; China: Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, and Shanxi. Found on plains and mountain slopes at 700-1600 m elevation (Fu et al. 1999).

Big tree

Oldest

Dendrochronology

Ethnobotany

"This species has medicinal properties" (Fu et al. 1999).

Observations

Remarks

Citations

Florin. 1933. Kongl. Svenska Vetenskapsakad. Handl., ser. 3, 12: 11.

Stapf. 1927. Bull. Misc. Inform. Kew 1927: 133.

See also

Last Modified 2017-12-29