Erigeron piscaticus

Erigeron piscaticus

Critically Imperiled  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Erigeron
Species: E. piscaticus
Binomial name
Erigeron piscaticus
G.L.Nesom

Erigeron piscaticus is a rare species of flowering plant in the aster family known by the common name Fish Creek fleabane.[1] It is endemic to Arizona in the United States, where it is known from three locations in Maricopa and Graham Counties.[2][3]

Erigeron piscaticus is an annual herb producing hairy, glandular stems up to 40 centimeters (16 inches) tall from a taproot. The oval leaves are 1 or 2 centimeters (0.4-0.8 inches) long and mostly smooth-edged. The flower heads are produced 1-4 per stem, each lined with hairy, glandular phyllaries. The heads contain 45–58 white ray florets each about 3 millimeters (0.12 inches) long.[1][4]

This plant grows on river terraces and washes. The "Fish Creek" part of the common name refers to Fish Creek Canyon in Maricopa County, where the type specimen was collected.[2][1][4]

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This article is issued from Wikipedia - version of the 6/29/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.