Leaf blade linear or rarely narrowly lanceolate, 3-4.5(-6) cm × 2-5 mm, abaxially usually downy. Male catkin cylindric, 1-1.5 cm, subsessile or shortly pedunculate, with leaflets at base; bracts uniformly yellowish green or apex reddish. Male flower: gland 1, adaxial; stamens 2, connate throughout. Female catkin shortly cylindric. Female flower: ovary sessile or shortly stipitate; style short; stigma capitate.