|
|
|
Ephedra L., Sp. Pl. 1041. 1753; Gen. Pl. 462.1754; O. Stapf. in Denk Akad. Wiss. Wien. Math.-Nat. Kl. 56:1-112.1889; Bobrov in Komarov, Fl. URSS. 1.195.1934; Ephedra in: Wealth of India, Raw Materials 3:177-180.1952. Pakhomova, M. G. in Bor Zhurn. 54, 5:697-705.1969; H. Riedl in Rech. f., Fl. Iran. 3.1963 ; E. Nasir, M. A. Siddiqi & Z. Ali, Gymnosperms of W. Pak.10.1969.
Shrubby dioecious, rarely monoecious plants with an erect to decumbent straggling or a scandent habit. Leaves reduced. Male strobili 2‑4 or clustered at the nodes; anther dehiscence porose. Female strobili 2‑4 per node; each strobilus with several pairs of bracts. Ovule(‑s) terminal, inner integument terminating in an exserted tube (tubillus). Sees 1‑2.
|
|
|
|
| 1 |
Scandent plants with linear leaves 0.8 2 3 cm long. |
|
Ephedra ciliata |
| + |
Plants not scandent. Leaves much reduced or scale
like. |
|
(2) |
| |
|
|
|
| 2 (1) |
Tubillus straight. |
|
(3) |
| + |
Tubillus not straight. |
|
(7) |
| |
|
|
|
| 3 (2) |
Plants small, up to 10 cm tall. |
|
Ephedra regeliana |
| + |
Plants more than 15 cm tall. |
|
(4) |
| |
|
|
|
| 4 (3) |
Tubillus up to 1.0 mm long. |
|
(5) |
| + |
Tubillus more than 1.5 mm long. |
|
(6) |
| |
|
|
|
| 5 (4) |
Branches ascending, green. Bracts of female strobili not winged. |
|
Ephedra gerardiana |
| + |
Branches spreading, yellowish green. Bracts of female strobili broadly winged, erose. |
|
Ephedra przewalskyi |
| |
|
|
|
| 6 (4) |
Branches slender, smooth striate; strobili solitary, bracts 4 pairs, connate. Fruit ovoid, sub globose. Seed 1. |
|
Ephedra procera |
| + |
Branches thick, striate; bracts 3 pairs. Seeds several. |
|
Ephedra sarcocarpa |
| |
|
|
|
| 7 (2) |
Stem scabrid,transversely rugulose.Seedslessthan 4 mm long. |
|
Ephedra pachyclada |
| + |
Stem striate verrucose. Seed 4 mm or more long. |
|
(8) |
| |
|
|
|
| 8 (7) |
Fruit 1 seeded. Seed 4 mm long. |
|
Ephedra monosperma |
| + |
Fruit 2-3 seeded. Seed 6 mm long. |
|
Ephedra intermedia |
|
|
|
Lower Taxa
Related Synonym(s):
| Related Links (opens in a new window) |
|
Treatments in Other Floras @ www.efloras.org
Other Databases
|
|
|
|
|
|
|
|
|
