Star burr
Acanthospermum hispidum
Erect annual much-branched subshrub, up to 60 cm. Stems covered in coarse white hairs. Leaves opposite, oblong-lanceolate, sessile; margin variously entire or toothed. Inflorescences axillary or terminal with minute creamy-yellow flowers. Fruits spiny with 2 long spines at the apex, arranged in star-shaped groups of 7 or 8.
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