Guanacaste Dry Forest Conservation Fund. Daniel H. Janzen. Year: 2010.   cc-by-nc-sa-3.0

Melanthera (Squarestem) is a genus of shrub in the family Asteraceae. They are native to The Contiguous United States, Hawaii, Puerto Rico, Pacific Basin excluding Hawaii, and U.S. Virgin Islands. Flowers are visited by Callicista columella istapa, Melete lycimnia, White Peacock, and Bartram's hairstreak Butterfly.

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EOL has data for 8 attributes, including:

Known occurrences, collected specimens and observations of squarestem. View this species on GBIF