Ephedra aspera Engelm. ex S. Wats.  
Family: Ephedraceae
rough jointfir,  more...
[Ephedra nevadensis var. aspera (Engelm. ex S. Wats.) L. Benson,  more]
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Liz Makings  
Shrubs erect, 0.5--1.5 m. Bark gray, cracked and fissured. Branches opposite or whorled, rigid, angle of divergence about 30°. Twigs pale to dark green, becoming yellow with age, not viscid, slightly to strongly scabrous, with numerous longitudinal grooves; internodes 1--6 cm. Terminal buds conic, 1--2 mm, apex obtuse. Leaves opposite (rarely in whorls of 3), 1--3(--5) mm, connate to 1/2--7/8 their length; bases thickened, brown, shredding with age, ± persistent; apex obtuse. Pollen cones 2 (rarely 1 or whorled) at node, obovoid, 4--7 mm, sessile or rarely on short peduncles; bracts opposite, 6--10 pairs, yellow to red-brown, obovate, 3--4 × 2--3 mm, membranous; bracteoles slightly exceeding bracts; sporangiophores 4--5 mm, 1/2 exserted, with 4--6 sessile to short-stalked (less than 1 mm) microsporangia. Seed cones usually 2 at node, ovoid, 6--10 mm, sessile or on short, scaly peduncles; bracts opposite, 5--7 pairs, circular, 4--7 × 2--4 mm, membranous, with red-brown thickened center and base, margins entire. Seed 1, ellipsoid, 5--8 × 2--4 mm, light brown to brown, smooth to slightly scabrous. Coning March--April. Dry rocky slopes, ravines, and fans; 500--1800 m; Ariz., Calif., N.Mex., Tex.; n Mexico.
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Leslie Landrum  
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Patrick Alexander  
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Patrick Alexander  
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Anthony Mendoza  
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Ries Lindley  
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Ries Lindley  
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Anthony Mendoza  
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Ries Lindley  
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Ries Lindley  
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Zachery Berry  
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Ries Lindley  
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Sue Carnahan  
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Zachery Berry  
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