Erigeron piscaticus

Erigeron piscaticus

Critically Imperiled  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Erigeron
Species:
E. piscaticus
Binomial name
Erigeron piscaticus

Erigeron piscaticus is a rare species of flowering plant in the family Asteraceae known by the common name Fish Creek fleabane.[2] It is endemic to Arizona in the United States, where it is known from three locations in Maricopa and Graham Counties.[1][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.[2][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.[1][2][4]

References

  1. ^ a b c Erigeron piscaticus. The Nature Conservancy.
  2. ^ a b c Flora of North America. Erigeron piscaticus G. L. Nesom, Phytologia. 67: 304. 1989. Fish Creek fleabane
  3. ^ Biota of North America Program 2014 county distribution map
  4. ^ a b Nesom, Guy L. 1989. Phytologia 67(4): 304–306
This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.