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Key to Iresine

Amaranthaceae

Iresine

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1 Stems woody nearly throughout, scabrous; leaves 12-60 cm long; tepals of pistillate flowers about as long as bractlets; [s. TX]
1 Stems herbaceous, glabrous to villous; leaves 3-15 cm long; tepals of pistillate flowers longer than bractlets; [collectively widespread in our region].
  2 Plant an annual to weak perennial, 4-30 dm tall, with fibrous roots; tepals 0.6-0.8 mm long, the tips obtuse to rounded
  2 Plant a perennial, 3-10 dm tall, with stolons; tepals 1.0-1.3 mm long, the tips acute to acuminate