Leaves not very crowded, erect, sessile, linear, 1 ft. long, ⅙ in. broad, very acute, sub-rigid; midrib distinct on both surfaces; underside showing 12-15 distinct raised vertical veins. Raceme lax, simple, terminal, shorter than the leaves; rhachis pubescent; bracts obsolete; flowers many in a cluster; pedicels ⅛ in. long, articulated at the base. Buds clavate, much constricted at the middle. Perianth-tube cylindrical, longer than the lobes.