Which feature is characteristic of male Buffalo grass?

The characteristic feature of male Buffalo grass is that it typically has 1-4 branches. This branching pattern is a key identification point in distinguishing male specimens from other grass varieties. Buffalo grass itself is a warm-season grass native to the Great Plains, and the male plants produce flower spikes that can exhibit this distinctive branching.

In contrast to the other options, a cluster of flowers typically pertains to female plants, where the inflorescence is more dense and bushy, rather than the more sparse and branched appearance found in male plants. The distinct white midrib belongs to certain grass species but is not exclusive or characteristic of male Buffalo grass specifically. Rabbit ear-like auricles may be found in various grasses and are not a defining feature for male Buffalo grass either. Therefore, focusing on the branching characteristic is crucial for accurate identification of male Buffalo grass.