This and californica are similar when young but give them a few years. M. mazatlanensis offsets profusely. I must correct also the locality Ugo. Barra de Navidad is in Jalisco not in Colima, although very close. I have seen this at Melaque which is the far side of Barra de Navidad, less than 4 km and also at Chamela further along the cost. It grows near the edge of the water.