''Gamochaeta coarctata'', the gray everlasting, is a species of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
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 ...
. It is widespread in South America (from
Colombia to
Uruguay
Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...
) and naturalized in parts of Eurasia, Australia, and North America.
[Guy L. Nesom 2004. New distribution records for ''Gamochaeta'' (Asteraceae: Gnaphalieae) in the United States. Sida 21(2): 1175–1185.]
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''Gamochaeta coarctata'' is an annual herb up to tall. Leaves are up to long. The plant forms many small flower heads in elongated arrays. Each head contains 2–4 yellow disc flowers but no ray flowers.
Some specimens collected in the United States were formerly misidentified as '' G. americana,'' which does not grow in the United States.[Guy L. Nesom 1990. The taxonomic status of ''Gamochaeta'' (Asteraceae: Inuleae) and the species of the United States. Phytologia 68:186–198.]
/ref>
References
External links
photo of herbarium specimen at Missouri Botanical Garden, collected in Peru in 1973
coarctata
Flora of South America
Plants described in 1803
{{Gnaphalieae-stub