Erect dense shrub, 1-2 m tall, non-lignotuberous. Branchlets and young leaves ferruginous. Leaves terete, 1-7 cm long, 1.1-2.5 mm wide, not grooved; mucro erect. Inflorescence with 2-8 flowers; involucre 1.3-5 mm long; pedicels 3.5-6 mm long, appressed-sericeous, with hairs white, extending onto perianth. Perianth 4.5-7.5 mm long. Pistil 5.5-10 mm long; disc of pollen presenter 0.8-1 mm long; gland 1.2-1.5 mm long. Fruit erect, obliquely broadly ovate or obovate, 2-4.5 cm long, 1.3-4 cm wide, initially smooth, with large stout corky projections when mature; beak smooth; apiculum straight or curved, 1-6 mm long. Seed 23-28 mm long, occupying part of valve; wing encircling seed body.
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