Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

EPHEDRACEAE

EPHEDRA FAMILY

James R. Griffin

Shrub or tree-like, densely branched, generally dioecious
Stem generally erect, < 2 m, jointed; node conspicuous, internode > leaf; bark with irregular, longitudinal cracks, generally gray; twigs whorled, grooved, greenish and photosynthetic when young, glaucous, glabrous to scabrous, sometimes thorn-like
Leaves 2–3 per node, not green; bases ± fused into sheath, thickening with age; tips often ± deciduous
Pollen cones 1–5 per node, generally short-stalked, generally spheric; bracts generally flexible, lower sterile, upper subtending 2–8 stamen-like structures
Seed cones generally 1–3 per node, sessile or stalk < 5 mm; bracts generally flexible, lower sterile, upper enclosing 1–3 seeds
Seed spheric to cylindric, smooth or furrowed, generally angled at top, generally brown
Genera in family: 1 genus, 42 species: North America, South America, Medit, Asia
Reference: [Cutler 1939 Ann Mo Bot Gar 26:373–424]

EPHEDRA

EPHEDRA, MORMON TEA


Etymology: (Greek: Equisetum , for resemblance to those plants)

Native

E. fasciculata A. Nelson


Stem generally low or prostrate, < 1 m; branch ± flexible; twig pale green when young, aging yellow, tip not thorn-like
Leaves 2 per node, < 3 mm, persistent; bases slightly thickened, whitish
Pollen cones generally 2–3 per node, < 8 mm
Seed cones 6–13 mm, sessile or short-stalked
Seed generally 1, 6–13 mm, obovoid-ellipsoid, furrowed
Ecology: Creosote-bush scrub
Elevation: < 1500 m.
Bioregional distribution: Desert
Distribution outside California: to Arizona, s Utah

Native

var. fasciculata


Seed cone 6–13 mm, elliptic
Seed 8–13 mm
Ecology:
Elevation:
Bioregional distribution: Desert
Distribution outside California: to Arizona
Horticultural information: TRY.

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