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Keywords from Image Description:
Acanthospermum australea. en Acanthospermum australe Loefl Kuntze as Centrospermum xanthioides Kunth Australian starbur Brazilian starbur creeping starbur eight seeded prostrate starbur Paraguay bur Paraguay starbur prostrate starbur sheepbur spiny bur Humboldt von Bonpland Kunth Nova genera et species plantarum vol Turpin org