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Apera
See list of 2 species in this genus-
1a. Leaves 3–5 mm wide; branches of the panicle ascending to spreading at anthesis, bearing flowers in the distal half of the branches
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1b. Leaves 1–3 mm wide; branches of the panicle contracted, erect at anthesis, bearing flowers in both distal and proximal halves of the branches
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Each photo represents one species in this genus.