A Calliandra trinervia var. carbonaria flower head spreads bright red stamens with pale anthers above large green leaflets and rounded red bud clusters

Calliandra trinervia var. carbonaria

Native to Colombia, Peru, and northern Brazil, this perennial tree can reach about 25 feet tall. Its compound leaves have a few large, narrow leaflets, and the flower heads have uniformly red stamens. The pods turn from green to brown as they mature. In Colombia, it has been recorded beside streams in montane woodland between about 4,300 and 6,900 feet. It is also planted as an ornamental tree. Photographed in Bogotá, Colombia.

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A rounded Calliandra trinervia var. carbonaria flower head spreads red stamens beneath several clusters of closed red buds

A Calliandra trinervia var. carbonaria flower head has radiating red stamens beside a red bud cluster and large green leaflets

A bright red Calliandra trinervia var. carbonaria flower head has fine stamens tipped with pale anthers against green foliage

Two Calliandra trinervia var. carbonaria flower heads rise above large drooping green leaflets with prominent veins

A Calliandra trinervia var. carbonaria tree bears many red flower heads across its leafy spreading crown beside a palm and a yellow-flowered tree