Xanthisma spinulosum (Pursh) D.R. Morgan & R.L. Hartm.

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Xanthisma spinulosum (Pursh) D.R. Morgan & R.L. Hartm.

Xanthisma spinulosum (Pursh) D.R. Morgan & R.L. Hartm. in Sida 20(4): 1406. 2003 sec. Villaseñor 2016
    • =Haplopappus spinulosus DC., Prodr. 5: 347. 1836 syn. sec. The Plant List 2013
    • =Haplopappus arenarius var. incisifolius I.M. Johnst. in Proc. Calif. Acad. Sci., Ser. 4, 12: 1190. 1924 syn. sec. ???
    • =Machaeranthera incisifolia (I.M. Johnst.) G.L. Nesom in Phytologia 69(2): 112. 1990 syn. sec. ???