Shrub or tree to 5 m high. Twigs pale brown pubescent. Leaves: petiole 2.5–4 mm long; lamina elliptic, ovate or obovate, 3.5–12 cm long, 1.5–5.5 (–7.5) cm wide, rounded or slightly cordate at base, glabrescent above, pale brown hirsute or pubescent below; secondary veins 8–12 pairs. Pedicel 2–5 mm long, pubescent. Sepals narrowly ovate, shallowly boat-shaped, 6–11 mm long, 4–5 mm wide, pubescent outside. Outer petals larger than inner petals, ovate, boat-shaped, shortly clawed, 25–32 (–40) mm long, 18–23 mm wide, pubescent inside and outside, dark maroon to indigo-black. Inner petals boat-shaped, 13–15 mm long, 8–10 mm wide, pubescent outside and inside, glandular-rugose inside above clawed base, dark maroon to indigo-black. Stamens 30–60, 1.5–2 mm long. Ovaries 2–2.4 mm long. [Zich et al. (2020) describe sepals triangular, c. 5–6 × 3 mm; inner petals c. 6–8 mm long.]
Home