Directory       News       Site Map       Home
         
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Previous taxon

EPHEDRACEAE EPHEDRA FAMILY

Stefanie M. Ickert-Bond

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.
1 genus, ± 50 species: arid, semi-arid (to tropical) regions of northern Africa, Asia, Europe, North America, South America. [Ickert-Bond 2003 Ph.D. Dissertation Arizona State Univ] —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Cutler 1939 Ann Missouri Bot Gard 57:373–428; Ickert-Bond 2003. Systematics of New World Ephedra L. (Ephedraceae): Integrating morphological and molecular data. Ph.D. Dissertation, Arizona State Univ, Tempe, Arizona, 363 pp; Stapf, O. 1889. Die Arten der Gattung Ephedra. Denkschrift der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse 56:1–112]

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

Key to Ephedra

E. funerea Coville & C.V. Morton DEATH VALLEY EPHEDRA
NATIVE
Stem: < 1.5 m; twig gray-green, aging gray; uppermost bud narrowed but not thorn-like; pith brown. Leaf: generally 3 per node, < 5 mm; base persistent, not recurved, not swollen. Pollen cone: 1–3 per node, 5–8 mm; bracts 3 per node. Seed cone: 1–3 per node, 9–13 mm, elliptic, stalk 0 or < 1 mm, straight, basal bracts reduced; distal bracts 3 per node, obovate, membranous, ± green, ± thickened, margin wide, yellow-translucent, stalk-like base wide. Seed: 1(3), 6–9 mm, barely 3 × as long as wide, beaked, smooth to scabrous with minute, spreading papillae.
2n=56+B. Dry rocky slopes in creosote-bush scrub; 360–1700 m. Mojave Desert; western Nevada, western Arizona. Cones present Mar–Apr. [Online Interchange]

Previous taxon: Ephedra foeminea
Next taxon: Ephedra nevadensis

Contact/Feedback

Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 22 2014
Citation for this treatment: [Author of taxon treatment] 2013. Ephedra, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=24276, accessed on Nov 22 2014

Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.


Geographic subdivisions indicated for the distribution of Ephedra funerea 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.
READ ABOUT YELLOW FLAGS
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

 

CCH collections by month

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