C sensu Brown Celmisia pugioniformis, commonly known as slender snow-daisy, is a species of perennial herb in the family Asteraceae.

The daisy-like flowerheads, which are 6 to 8 cm in diameter, appear between December and February in the species native range.

[3] Prior to 1992, plants had been included under the name Celmisia asteliifolia.

[3] The species occurs in heaths, herbfields and bogs in alpine and subalpine areas in New South Wales and Victoria.

[2] Associated species include Eucalyptus niphophila, Olearia phlogopappa, Acrothamnus hookeri, Hovea sp.