Canes thick, light to dark brown; tendrils continuous, bifid.
Four apophyses of each spine simply forked (or partly with bifid fork-branches); each spine with eight to twelve sutural condyles.
The limb of the corolla (b) is five-cleft, and the style (c) bifid.
The body is much attenuated towards the tail, which is bifid.
The long slender awn is inserted below the bifid tip ...