Key to the Lomandra species of series Sparsiflorae in north Queensland

1. Leaves 3–5 mm wide. Male and female inflorescences dissimilar ......................................................................................... L. grayi

- Leaves 0.5–3 mm wide. Male and female inflorescences similar......................................................................................................2

2. Leaf surface scabrous; leaf apex rounded to obtuse without teeth................................................................................. L. scabrifolia

- Leaf surface glabrous; leaf apex acuminate or minutely 1–3-pointed ...............................................................................................3

3. Leaf apex minutely 1–3-pointed. Female inflorescences 2–9 mm long; 10–20 flowers.................................................. L. filiformis

- Leaf apex acuminate. Female inflorescence 10–21 cm long; 3–7 flowers............................................................................. L. tenuis