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Picture key - unbranched flowering head
choose between three options below (A, B, C)
A. Flowering head cylindrical or conical, densely packed, without prominent awns or bristles. Examples shown below.
choose this option
B. Flowering head without prominent awns or bristles and not densely packed. Examples shown below.
choose this option
C. Flowering head with prominent awns or bristles. Examples shown below.
choose this option
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