Anderbergia ustulata B.Nord.

A diffuse shrublet 0.1-0.5 m high with slender, repeatedly branching leafy stems and numerous brachyblasts in older leaf-axils, greyish-tomentose throughout, but partly glabrescent with age. Leaves evenly distributed along the stems and branches, and crowded on the brachyblasts, suberect to erecto-patent, becoming spreading to somewhat reflexed with age, oblong to elliptic-oblong, 5-8 mm long, 1-2 mm wide, margins much revolute (to 1/4 of the lower side), apex obtuse and apiculate; greyish-tomentose especially on the lower side. Capitulescence compact, rounded to semiglobose, 1-1.7 cm in diam., consisting of 15-25 densely crowded capitula. Involucre cup-shaped, c. 4 mm long and 2.5 mm wide; outer involucral bracts 9-14, filiform or linear to narrowly oblong-oblanceolate to spatulate, 2.5-3.5 mm long, 0.2-1 mm wide, basally yellowish to straw-coloured with copious cobwebby wool, distally membranous, dark brown, with rounded to truncate or emarginate glabrous apex; inner involucral bracts unguiculate, 6-8, c. 3 mm long, petaloid apical portion ± square, c. 1 mm long and wide, truncate or slightly emarginate. Female floret 1; corolla tubular, c. 2.5 mm long, glandular; cypsela (immature) subglabrous with only a few papilliform short hairs or setae; ovary wall crystals heteromorphic, some needle-like, some flat, in different sizes, some sub-rectangular, others bluntly hexa-or octagonal; pappus bristles barbellate with slender acute teeth throughout, basally connate. Male florets 4; corolla yellow, 2.5-3 mm long, limb 5-lobed, glandular. Anthers c. 1 mm long excl. tails; appendage triangular-ovate, subobtuse. Style simple, truncate. Pappus bristles c. 2 mm long (± equalling florets), barbellate throughout, with subobtuse to rounded apical cells.