''Adeia discoidea'' is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

in the sunflower family,

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

. It is a perennial herb or

subshrub A subshrub (Latin ''suffrutex'') or undershrub is either a small shrub (e.g. prostrate shrubs) or a perennial that is largely herbaceous but slightly woody at the base (e.g. garden pink and florist's chrysanthemum). The term is often interch ...

native to

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

and

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

. It is native the Northern Coast Ranges and Klamath Ranges of northwestern California and adjacent Oregon, where it grows in open montane conifer forest from 1000 to 2500 meters elevation.David J. Keil, Gregory K. Brown & W.D. Clark 2012
''Hazardia whitneyi'' var. ''discoidea''
in Jepson Flora Project (eds.) ''Jepson eFlora''. Retrieved 5 July 2024. It was first named ''Haplopappus whitneyi'' var. ''discoideus'' in 1950, and was renamed ''Hazardia whitneyi'' var. ''discoidea'' in 1979. In 2021 Guy L. Nesom placed ''Hazardia whitneyi'' in the new genus '' Adeia'' as '' Adeia whitneyi'', and raised var. ''discoidea'' to a distinct species as ''Adeia discoidea''.Nesom, G.L. 2021. Two new North American genera segregated from ''Hazardia'' (Asteraceae: Astereae). ''Phytoneuron'' 2021-39: 1–36. Published 13 September 2021. ISSN 2153-733X

References

{{Taxonbar, from= Q126950216 Astereae Flora of California Flora of Oregon Plants described in 1950 Taxa named by John Thomas Howell