Erigeron aquarius is a Central American species of flowering plant in the family Asteraceae. It has been found only in Guatemala and Honduras. The type specimen was collected in Guatemala in 1939.Tropicos, Erigeron aquarius Standl. & Steyerm.Standley, Paul Carpenter & Steyermark, Julian Alfred 1940. Publications of the Field Museum of Natural History, Botanical Series 22(4): 301. description in Latin, commentary in EnglishNash, D. L. 1976. Tribe III, Astereae. En: Nash, D.L. & Williams, L.O. (eds), Flora of Guatemala - Part XII. Fieldiana, Botany. 24(12): 157
Erigeron aquarius is a perennial subshrub with a woody stem up to 50 cm (20 inches) tall, producing a woody underground rhizome. Stems are sometimes erect (standing straight up), moderately hairy. Leaves are moderately hairy, some produced close to the ground plus others higher on the stem. The plant produces flower heads on long, thin stalks. Each head contains 80-180 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 9
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External links Photo of herbarium specimen at Missouri Botanical Garden, collected in Honduras in 1992