kingdom: Plantae >
subkingdom: Pteridobiotina Britton & Brown >
phylum: Tracheophyta >
class: Magnoliopsida >
order: Asterales >
family: Asteraceae Dumort. >
subfamily: Asteroideae (Cass.) Lindl. >
genus: Tuxtla Villaseñor & Strother >
Mexico (Veracruz); Costa Rica