Astelia graminea has fine arching grass-like foliage, and forms clumps 12–16 in (30–40 cm) across. The narrow, leathery, brownish leaves are 6–20 in (15–50 cm) long. The male flowers are maroon, the female one are greenish, summer. The fruits are bright orange.
Astelia graminea is found in the alpine grasslands of Marlborough and Nelson, South Island, New Zealand. Suitable for the rock garden.