Oedera squarrosa ray florets spreading

The stem-tip clusters of Oedera squarrosa flowerheads are dense, each usually containing few heads. There may occasionally be more than twenty heads at a stem-tip but mostly only three to twelve. There are sometimes additional flowerheads below the tip, from the axils of upper stem leaves.

A head becomes about 8 mm in diameter. The peduncles, usually obscured by the leaves, are from 2 mm to 10 mm long. One ring of yellow ray florets spreads around the also yellow disc florets of each head. The rays are narrowly elliptic, notched at the tips and each blade divided into three bands by two longitudinal folds. The densely clustered, bisexual disc florets have tubes that are five-lobed at their tips.

Flowering happens mostly late in winter and early in summer, while some flowers may appear as late as early summer. The photo was taken during October.

The many, dry, one-seeded fruits (cypselas) that grow in each head after the flowering are linear and about cylindrical (Vlok and Schutte-Vlok, 2015; Manning, 2007; Bond and Goldblatt, 1984; iNaturalist; Wikipedia; https://keyserver.lucidcentral.org).