Jepson eFlora: Taxon page
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Ephedra aspera
BOUNDARY EPHEDRA

Higher Taxonomy
Family: EphedraceaeView Description 

Common Name: EPHEDRA FAMILY
Habit: Shrub; generally dioecious; taproot deep. Stem: erect, prostrate, occasionally climbing, jointed, much branched, green in youth; branchlets opposite or whorled, cylindric, longitudinally grooved; pith brown or white. Leaf: simple, 2 (each pair at right angles to adjacent pairs) or 3 per node, scale-like, +- fused at base into membranous sheath, generally ephemeral; resin canals 0. Cone: axillary (terminal), sessile or not, 1--many per node, ovoid or ellipsoid. Pollen Cone: bracts 2--3 per node, proximal sterile, distal subtending 2 basally fused bractlets subtending a stalk with 2--10(15) sessile to stalked, anther-like parts with 2 apical pores. Seed Cone: stalk 1--11(50) mm, generally straight, naked or with reduced basal bracts; distal bracts in (2)4--10 pairs or whorls, free or fused, brown or green, scarious or fleshy, subtending 2 fused leathery bractlets enclosing 1 ovule. Seed: 1--3(4) per cone (in ×-section, +- round if 1, +- semicircular if 2, +- triangular if 3, etc.), +- spheric to ellipsoid or lance-ovoid, beaked or not.
Genera In Family: 1 genus, +- 50 species: arid, semi-arid (to tropical) regions of northern Africa, Asia, Europe, North America, South America.
eFlora Treatment Author: Stefanie M. Ickert-Bond
Scientific Editor: Thomas J. Rosatti.
Genus: EphedraView DescriptionDichotomous Key

Common Name: EPHEDRA, MORMON TEA
Stem: spreading to generally erect, 0.3--2(4.5) m; uppermost bud generally conic, generally not thorn-like.
Etymology: (Greek: sitting upon, from jointed stems and/or ancient name for Equisetum, also with jointed stems)

Ephedra aspera S. Watson
NATIVE
Stem: 0.3--2 m; twig +- green, aging yellow, glaucous or not; pith dark brown. Leaf: 2 per node, 1--3.5 mm, generally persistent; sheath splitting, base in age swollen. Pollen Cone: 1--many per node, 2.5--7 mm; bracts 2 per node. Seed Cone: 1--few per node, 4.5--8(10) mm, ovoid, stalk <= 2 mm, basal bracts reduced; distal bracts 2 per node, free, ovate, red-brown, margins membranous, stalk-like base 0. Seed: generally 1, 4--7(8) mm, generally < 2 × as long as wide, smooth to +- roughened. Chromosomes: 2n=14,28.
Ecology: Creosote-bush scrub, Joshua-tree woodland; Elevation: 50--2133 m. Bioregional Distribution: SnBr, SnJt, SNE, D; Distribution Outside California: to Texas, Mexico. Note: Cones present Mar--Apr.
Synonyms: Ephedra clokeyi H.C. Cutler; Ephedra fasciculata A. Nelson; Ephedra fasciculata var. clokeyi (H.C. Cutler) Clokey; Ephedra fasciculata var. fasciculata; Ephedra nevadensis S. Watson var. aspera (Engelm. ex S. Watson) L.D. Benson; Ephedra peninsularis I.M. Johnst.; Ephedra reedii Cory
eFlora Treatment Author: Stefanie M. Ickert-Bond
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Citation for this treatment: Stefanie M. Ickert-Bond 2016. Ephedra aspera, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=24282, accessed on February 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 06, 2016.


Geographic subdivisions for Ephedra aspera:
SnBr, SnJt, SNE, D;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.