Guy L. Nesom
Guy L. Nesom (born August 2, 1945)''U.S. Public Records Index'' Vol 2 (Provo, UT: Ancestry.com Operations, Inc.), 2010. is an American writer and botanist.
Nesom received his Ph.D. in systematic botany from the University of North Carolina in 19 ...
in 1990, with two species, ''M. mexicanum'' and the type species ''M. sarmentosum''. In 2023, Nesom added a third species, ''M. stolonatum'', transferred from ''
Chionolaena
''Chionolaena'' is a genus of flowering plants in the family Asteraceae. It is native to tropical and subtropical regions in the Americas, with species occurring discontinuously from central Mexico to southern Brazil.Freire, S. E. (1993)A revisio ...
''. ,
Plants of the World Online
Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...
accepted only ''M. mexicanum'' and ''M. stolonatum'', while the World Flora Online accepted only ''M. mexicanum''.