Snapshots of the taxonomy

This subspecies name was first published in Rep. U. S. et Mex. Bound. Surv. 2(1): 233 (1859)  

At the time of this classification snapshot, this subspecies name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-0001114307.