Woody shrublet, 0.1–1 m tall, sometimes scandent and up to 2 m, all parts puberulous. Leaves oblanceolate, 5–22(–30) x 2–8.5 mm, cuneate at the base, rounded to emarginate at the apex. Racemes lateral, sometimes spine-tipped, up to 2 cm long, sometimes solitary flowers also; bracts usually persistent; pedicels slender, 3–10 mm long. Outer sepals 2.5–6 mm long, free; wings accrescent, 6–14 x 4–11.5 mm, at anthesis pink to bright yellow, becoming pale brown, pubescent or ciliate. Petals purple, the upper three quarters as long as wings; keel slightly shorter than wings, with a fringed appendage at the tip. Capsule elliptic to broadly oblong, 5–8 x 3.5–6 mm, pubescent or ciliate. Seeds 4.5–5.5 x 2.5–3 mm, with short hairs; caruncle c. 0.8 x 0.8 mm, with 2 lateral appendages just shorter than the seed.