Erigeron pacayensis is a Central American species of flowering plant in the family Asteraceae. It has been found only in Guatemala, El Salvador, and Honduras.
Erigeron pacayensis is a perennial subshrub with a woody stem up to 55 cm (22 inches) tall, producing a woody taproot. Leaves are very narrow, almost thread-like, though with a few teeth along the edges. The plant produces flower heads on long, thin stalks. Each head contains 50-120 white ray florets surrounding numerous yellow disc florets.Nesom, G.L. and J.F. Pruski. 2011. Resurrected species of Erigeron (Asteraceae: Astereae) from Central America. Phytoneuron 2011-36: 1–10. includes distribution map on page 9Greenman, Jesse More 1907. Publications of the Field Columbian Museum, Botanical Series 2(6): 266
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External links Photo of herbarium specimen in Missouri Botanical Garden, collected in Guatemala in 2007