usually 2 pairs of homogamous spikelets at base of both lower and upper raceme of pair;
通常对更更面总状花序2对同性花小穗在基部;
usually 2 pairs of homogamous spikelets at base of both lower and upper raceme of pair;
通常对更更面总状花序2对同性花小穗在基部;
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