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Common Brassbuttons

Cotula coronopifolia (species), “Buttonweed”

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The small marsh flower Cotula coronopifolia bears the common names brass buttons, golden buttons, and buttonweed. The flower heads are bright yellow discoid heads that look like thick buttons. Individual plants spread stems along the ground and send up the knobby flowers at intervals. The plant is native to southern Africa, as well as New Zealand, but it has been introduced to other parts of the world (Europe, North + South America, etc.).Brass buttons are common plants that occupy a specialized ecological niche. They prefer muddy, anoxic wetlands and brackish water. They are very salt-tolerant. The plant has fat, fleshy leaves that store water during times of saline inundation. The reddish stems and green, blade-shaped leaves are coated with a shiny cuticle to retain moisture. It can also…

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