Poaceae 禾本科 >> 菅屬
The number of spikelets in a raceme refers to the total of homogamous, sessile, and pedicelled spikelets.
Hence racemes with seven spikelets (division 1a of the key) have only one fertile sessile spikelet and one awn.
Racemes with more than one awn have more than seven spikelets.
[ 本帖最後由 paulvps 於 2017-12-6 22:29 編輯 ]