Erythrostemon macvaughii (J.L.Contr. & G.P.Lewis) Gagnon & G.P.Lewis
kingdom: Plantae >
subkingdom: Pteridobiotina Britton & Brown >
phylum: Tracheophyta >
class: Magnoliopsida >
order: Fabales Bromhead >
family: Fabaceae >
genus: Erythrostemon Klotzsch >
Mexico Southwest