Ephedra gerardiana var. sikkimensis

• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• Bibliography
• More Info
• Notes

Common Names

Description

Genus Ephedra

Shrubs or occasionally clambering vines . Branches jointed , yellowish green to olive-green when young. Leaves opposite or in whorls of 3, apex obtuse to setaceous from an adaxial-median thickening. Pollen cones lanceoloid or ellipsoid to ovoid or obovoid . Seed cones ellipsoid to ovoid, obovoid, or nearly globose . Seeds ellipsoid to globose, yellow to dark brown, smooth to scabrous or furrowed . x = 7.

Species ca. 60: generally dry areas in temperate , tropical North America and Mediterranean regions, Mexico, South America (Ecuador to Patagonia and lowland Argentina), s Europe, Asia, n Africa (including Canary Islands).

The North American species of Ephedra are well defined based on combinations of vegetative and reproductive characters. Putative hybrids reported and described by H. C. Cutler (1939) appear to be products of singular events; these hybrids are discussed under the parental species. Infraspecific taxa are not recognized in this treatment because there appear to be no consistent defining characters and no geographic correlations ; previous recognition of infraspecific taxa (H. C. Cutler 1939) appears to be based on random variability.Zhen-lan Wu & Sylvia M. Phillips "Ephedra". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org.

Physical Description

Biology

Growth

Sunlight: Sun Exposure: Sun to Partial Shade.

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 7a, 7b, 8a, 8b, 9a. (map)

Taxonomy

Notes

A tentatively accepted name in the RHS Horticultural Database.

Similar Species

Members of the genus Ephedra

There are approximately 178 species in this genus. Here are just 100 of them:

E. 879 · E. aff. glauca · E. affinis intermedia · E. alata · E. album · E. alenda · E. alte · E. altissima · E. americana · E. americana Humb. & Bonpl. ex Willd. var. andina (Poepp. ex Willd.) Stapf · E. americana var. andina (Joint Fir) · E. americana var. rupestris · E. andina · E. antisyphilitica (Clapweed) · E. aphylla (Ephedra) · E. araucana · E. arborea · E. arenicola (Sand Mormon Tea) · E. aspera (Aspera Mormon Tea) · E. atlantica · E. aurantiaca · E. biumbellata · E. boelckei · E. botryoides · E. botschantzevii · E. bracteata · E. breana · E. brevifoliata · E. california · E. californica (California Joint-Fir) · E. californica var. californica · E. campulopoda · E. campylopoda · E. chilensis · E. chilensis 'Mellow Yellow' · E. chilensis 'Quite White' · E. ciliata · E. clusii · E. compacta · E. coryi (Cory Ephedra) · E. cutleri (Cutler Mormon Tea) · E. dahurica · E. dawuensis · E. distachia · E. distachya (Jointfir) · E. distachya distachya · E. distachya helvetica · E. distachya L. var. monostachya (L.) Stapf · E. distachya var. distachya · E. dubia · E. dumosa · E. dystachia · E. eleutherolepis · E. equisetiformis · E. equisetina (Ma Huang) · E. equisetina 'Bluestem' · E. fasciculata (Arizona Ephedra) · E. fasciculata var. clokeyi · E. fasciculata var. fasciculata · E. fedtschenkoae · E. fedtschenkoi · E. ferganensis · E. flava · E. foemina · E. foeminea · E. foliata · E. fragilis · E. fragilis campylopoda · E. fragilis fragilis · E. frustillata · E. funera · E. funerea (Death Valley Ephedra) · E. geradiana · E. gerardiana (Gerard Jointfir) · E. gerardiana var. sikkimensis (Asamania) · E. gibraltarica · E. glauca · E. gracilis · E. graeca · E. grafilis · E. helvatica · E. helvetica · E. holoptera · E. humilis · E. intermedia · E. intermedia Schrenk & C.A.Mey. var. glauca (Regel) Stapf · E. intermedia Schrenk & C.A.Mey. var. intermedia · E. intermedia Schrenk & C.A.Mey. var. persica Stapf · E. intermedia Schrenk & C.A.Mey. var. tibetica Stapf · E. intermixta (Intermixed Jointfir) · E. kaschgarica · E. kokanica · E. laristanica · E. lepidosperma · E. likiangensis (Ephedra) · E. likiangensis f. mairei · E. lomatolepis · E. ma-huang · E. macedonica · E. macrocephala

Bibliography

• Benson, L. D. 1943. Revisions of status of southwestern trees and shrubs. Amer. J. Bot. 30: 230--240.
• Cutler, H. C. 1939. Monograph of the North American species of the genus Ephedra. Ann. Missouri Bot. Gard. 26: 373--427.
• Mussayev, I. 1978. On geography and phylogeny of some representatives of the genus Ephedra. Bot. Zurn. (Moscow & Leningrad) 63: 523--543. [In Russian.]

More Info

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Notes

Contributors

• Bisby FA, Roskov YR, Orrell TM, Nicolson D, Paglinawan LE, Bailly N, Kirk PM, Bourgoin T, van Hertum J, eds (2008). Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist Taxonomic Classification. CD-ROM; Species 2000: Reading, U.K.
• Brands, S.J. (comp.) 1989-2006. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. Accessed October 5, 2006.
• World Checklist of Selected Plant Families

Identifiers

• Catalogue of Life Accepted Name Code: Kew-332940
• Zipcode Zoo Species Identifier: 1015109

Footnotes

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