Eriophyllum ambiguum

Eriophyllum ambiguum is a species of flowering plant in the aster family known by the common name beautiful woolly sunflower. It is native to the deserts and adjacent hills of southern and eastern California, northwestern Arizona, and southern Nevada.[2][3]

Eriophyllum ambiguum
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Heliantheae
Genus:
Eriophyllum
Species:
E. ambiguum
Binomial name
Eriophyllum ambiguum
Synonyms[1]
  • Bahia ambigua (A.Gray) A.Gray
  • Bahia parviflora A.Gray
  • Eriophyllum parishii H.M.Hall ex Constance
  • Eriophyllum parviflorum (A.Gray) Rydb.
  • Lasthenia ambigua A.Gray
  • Eriophyllum paleaceum Brandegee, syn of var. paleaceum

Eriophyllum ambiguum grows in chaparral, woodlands, and desert habitat. It is an annual herb growing decumbent or upright with stems up to 30 centimeters (1 foot) long. The leaves are widely lance-shaped or oblong and sometimes have lobes, with woolly hairs on both sides. The inflorescence produces one flower head containing many yellow disc florets and 6 to 10 yellow, white, or bicolored ray florets which are each 2 millimeters to one centimeter (0.08-0.40 inches) long. The fruit is a rough-haired achene which may have a very small pappus.[4]

Varieties[4][1][3]

References
  1. The Plant List, Eriophyllum ambiguum (A.Gray) A.Gray
  2. Biota of North America Program 2014 county distribution map
  3. Calflora taxon report, University of California, Eriophyllum ambiguum (A. Gray) A. Gray, annual woolly sunflower, beautiful woolly sunflower
  4. Flora of North America, Eriophyllum ambiguum (A. Gray) A. Gray


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