In Montana, the diversity and abundance of this tribe occurs mostly in disturbance-prone settings, although blue grama, Bouteloua gracilis, occurs also in rangeland and Wyoming big sagebrush steppe in good ecological condition. The diversity of this tribe in North America is centered in deserts and seasonally dry or semi-arid woodlands of Mexico and adjacent southwestern USA (e.g., Tamaulipan matorral, Chihuahuan Desert, Sonoran Desert, Mohave Desert, southern Great Basin Desert). Montana harbors relatively few species of Chloridae and some very common North American Chloridae do not occur in the state.
114. Bouteloua gracilis.
115. Bouteloua barbata. Sixweeks grama. This species has yet to be included in the Montana Grasses app. A native annual bunchgrass with ascending to erect stems, the only annual grama to occur in Montana, and then on open ground and rocky hills, from Beaverhead, Carbon, and Gallatin Counties and probably not persisting.
116. Bouteloua hirsuta (permanent mount). Hairy grama. This species has yet to be included in the Montana Grasses app. A native perennial bunchgrass very similar to Bouteloua gracilis but the main rachis of each lateral branch extends beyond the terminal spikelet and the lateral branch is typically much hairier and each hair often arises from a dark gland.
117. Bouteloua eriopoda (permanent mount). This species is not in Lesica or the Montana Grasses app.
118. Buchloe dactyloides (permanent mount).
119. Schedonnardus paniculatus (mostly just dispersed wiry panicles).
120. Spartina gracilis.
121. Spartina pectinata (I divided up the panicles into clusters of spikes so just take a cluster of spikes).
122. Hilaria jamesii. This species is not in Lesica or the Montana Grasses app.
123. Chloris virgata. This species is not in Lesica or the Montana Grasses app.
124. Cynodon dactylon.
125. Eleusine indica (permanent mount).