Bouteloua aristidoides var. arizonica

M.E. Jones
Common names: Arizona needle grama
Treatment appears in FNA Volume 25. Treatment on page 257.

Panicle branches 15-35 mm to the base of the terminal spikelets and extending an additional 1.5-5(7) mm, with 6-10 spikelets.

Discussion

Bouteloua aristidoides var. arizonica grows in the same kind of habitats as var. aristidoides, but only from 500-800 m. It has a more restricted range than B. aristidoides var. aristidoides (which extends into northern Mexico), being known only from New Mexico, Arizona, and Chihuahua, Mexico. In its extreme form, var. arizonica is very different from var. aristidoides, but the two varieties do intergrade.

Selected References

None.

Lower Taxa

None.