''Eatonella'' is a

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

n genus of plants in the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

containing the single known species ''Eatonella nivea'', which is called by the common name white false tickhead. This small annual is native to the western

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

, particularly the

Great Basin The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California ...

, where it grows in sandy soils. It has been found in Washington (

Grant Grant or Grants may refer to: Places *Grant County (disambiguation) Australia * Grant, Queensland, a locality in the Barcaldine Region, Queensland, Australia United Kingdom *Castle Grant United States * Grant, Alabama *Grant, Inyo County, C ...

+ Kittitas Counties),

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyom ...

Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...

, and eastern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

( Modoc, Lassen,

Mono Mono may refer to: Common meanings * Infectious mononucleosis, "the kissing disease" * Monaural, monophonic sound reproduction, often shortened to mono * Mono-, a numerical prefix representing anything single Music Performers * Mono (Japanese b ...

, and Inyo Counties). ''Eatonella nivea'' is a short

annual plant An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. The length of growing seasons and period in which they take place vary according to geographical ...

, growing in a clump rarely more than 5 centimeters (2 inches) high and not much more wide. It has tiny dark green leaves no more than 30 mm (1.2 inches) long, densely packed together and covered in a thick grayish wool. The plant produces flower heads one at a time, which look like tiny pale yellow daisies less than a centimeter across, with up to 13 yellow or purple

ray florets The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

and up to 14 yellow

disc floret The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

s. The fruits are shiny black

achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not ope ...

s with white fringe, each a few millimeters long.Flora of North America, ''Eatonella'' A. Gray
/ref> The genus was named for the American botanist

Daniel Cady Eaton Daniel Cady Eaton (September 12, 1834 – June 29, 1895) was an American botanist and author. After studies at the Rensselaer Institute in Troy and Russell's military school in New Haven,"Daniel Cady Eaton", ''American Journal of Science'', A ...

, 1834–1885.Gray, Asa. 1883. Proceedings of the American Academy of Arts and Sciences 19: 19-20
/ref> ;formerly included *'' Eatonella congdonii'' A.Gray, now called '' Monolopia congdonii'' (A.Gray) B.G.Baldwin

References

External links

Jepson Manual TreatmentUnited States Department of Agriculture Plants ProfileCalphotos Photo gallery, University of California
Madieae Monotypic Asteraceae genera Flora of the Western United States {{Madieae-stub