Xyris gracilis, commonly known as slender yellow-eye,[2] is a species of flowering plant in the family Xyridaceae and is endemic to eastern Australia.

Xyris gracilis is a tufted herb with flat, linear leaves 60–29 cm (24–11 in) long and 1–4 mm (0.039–0.157 in) wide with a sheathing base 14–60 mm (0.55–2.36 in) long and brown or reddish.

There are usually 5 to 8 yellow inflorescences, each 5–8 mm (0.20–0.31 in) on flowering stems 27–66 cm (11–26 in) long, each inflorescence with 6 to 14 bracts arranged in 3 to 5 whorls and the flowers opening one at a time.

[2][3][4] Xyris gracilis was first formally described in 1810 by Robert Brown in Prodromus Florae Novae Hollandiae et Insulae Van Diemen.

[7] Slender yellow-eye grows in moist or swampy areas, often in heath, and is widespread on the coast and ranges of New South Wales and southern Victoria.