Similar to A. corniculata . Monoecious shrub 2-4 m high. Branchlets with articles 8-13 mm long, 1-1.8 mm diam., verruculose; teeth 9-11, erect, slightly overlapping at bases, 0.5-1.0 mm long. Male spikes 1.5-3 cm long, 7 or 8 whorls per cm; anther 0.8-1.3 mm long. Cones ovoid to cylindrical, sessile or on peduncle to 6 mm long; cone body 10-23 mm long, 8-12 mm diam.; protuberance usually extending into a stout, often deciduous awn 4-11 mm long. Samara 5.5-7 mm long, very dark purple-brown to black.
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