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Key to Gomphrena

Amaranthaceae

Gomphrena

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1 Heads 20-28 mm in diameter, white or yellow or red or purple; stems erect
1 Heads 8-14 mm in diameter, pinkish or white tinged with pink or red; stems erect or decumbent to prostrate.
  2 Leaves sessile, 1.5-4 cm long; stems ascending to erect
  2 Leaves sessile or petiolate, 1.5-7.5 cm long; stems decumbent or prostrate