The cup-shaped Oedera sedifolia involucre is from 2 mm to 6 mm in diameter. It comprises about three or four rows of ovate to linear bracts. Blunt-tipped in the lower, outer rows, sharper-tipped in the upper ones, the bracts in picture are brown-tipped, the inner ones gland-dotted.
There are scales on the conical to flat receptacle at the base of the cup.
The uppermost leaves seem to lose their few longish hairs quickly, the more numerous, short hairs lasting longer (Manning and Goldblatt, 1997; Bond and Goldblatt, 1984; iNaturalist).