Spines may be present on the midrib of leaflets and the rachis of compound leaves. The leaf blade is narrow or broad with pinnate veins running parallel to the midrib. The leaf undersurface is white with a prominent midrib covered in brownish hairs. It has a broad midrib (rachis). Adventitious flower clusters form along the midrib of the cotyledon. Dark trichomes are present on the upper midrib surface. They have a prominent midrib and veins on the paler underside. When prickles are present they are found more along the midrib and lateral veins. They are feather-veined, with a prominent midrib and primary veins. The parallel leaf veins arise from the midrib (not typical of monocots). The leaves have parallel veins and a distinct midrib. The leaf has three nerves, the midrib and primary veins prominent. The leaves have a pale yellow midrib. Three to four longitudinal veins are present on either side of the midrib. Glands are present along the midrib or occasionally on the adjacent nerves.