Cirsium trachylomum ContentDistribution Tipo de ambiente Distribution México (Country) endemicA: Baja California native; Baja California Sur endemicAA. Villaseñor, J. L. 2016: Checklist of the native vascular plants of Mexico. – Revista Mex. Biodivers. 87: 559–902 Tipo de ambiente No method for rendering unknown description class: SynonymyCirsium trachylomum S.F. Blake in J. Wash. Acad. Sci. 25: 322. 1935