Melolobium alpinum Eckl. & Zeyh.

Unarmed virgate shrublet, up to 0.5 m high. Leaves stipulate, leaflets linear oblong to oblanceolate or narrowly obovate, 12-13 x 2-4 mm, with sessile glands, sparsely hairy, apex mucronate; petiole 5-7 mm long, stipules semi-cordate to auriculate, 4-6 x 1-3 mm, with sessile glands. Inflorescence terminal, 40-80(-120) mm long, with (14-)16-24(-28) flowers, flowers 8-10 mm long; bracts lanceolate to ovate, 4-6 x 0.5-1.0 mm; bracteoles linear to narrowly ovate, 24 x 0.2-0.7 mm. Calyx shortly bilabiate, with sessile glands, pubescent; upper lobes acute; upper lip 4-5 mm long, the apices obtuse, upper sinus 1-2 mm deep; lateral sinus 1.5-4.0 mm deep; lower lobes acute; lower lip 4-5 mm long, the apices obtuse, lower sinuses ±0.5 mm deep. Corolla yellow; standard sub-orbicular, 6-7 x 6-7 mm, with a well-developed, channelled claw 3-4 mm long; wing petals oblong, sculptured, 8-11 x 2-3 mm, with a linear claw 2-4 mm long; keel petals shorter than the wing petals, 7-8 x 2.5-3.5 mm, with a linear claw 2-4 mm long. Gynoecium narrowly oblong, glandular, hairy, 3-4-ovuled. Fruit oblong-lanceolate, somewhat falcate, (14-)18-20 x 3-4 mm, hairy, 3-4-seeded; seeds round, 2.0-2.3 x 1.6-2.3 mm, pale yellow mottled black.