Isocoma drummondii

{{Short description|Species of flowering plant}}

{{Speciesbox

|image =

|genus = Isocoma

|species = drummondii

|authority = (Torr. & A.Gray) Greene 1894

|synonyms_ref = [http://www.theplantlist.org/tpl1.1/record/gcc-105010 The Plant List Isocoma drummondii (Torr. & A.Gray) Greene ]

|synonyms = {{collapsible list|bullets = true

|title=Synonymy

|Aster berlandieri Kuntze

|Bigelowia drummondii (Torr. & A.Gray) A.Gray

|Bigelovia drummondi (Torr. & A.Gray) A.Gray

|Chondrophora drummondii (A.Gray) A.Heller

|Haplopappus drummondii (Torr. & A.Gray) S.F.Blake

|Aplopappus drummondii (Torr. & A.Gray) S.F.Blake

|Isocoma megalantha Shinners

|Linosyris drummondii Torr. & A.Gray 1842

}}}}

Isocoma drummondii, the Drummond's goldenbush,{{PLANTS|id=ISDR|taxon=Isocoma drummondii|accessdate=7 August 2015}} is a North American plant species in the family Asteraceae. It has been found on both sides of the Río Grande, in Tamaulipas and in southern Texas.

Isocoma drummondii is a completely hairless shrub up to 100 cm (40 inches) tall. The plant produces flower heads in clusters on the tips of branches, each head containing 22–34 disc flowers but no ray flowers.[https://www.biodiversitylibrary.org/page/12981103#page/3/mode/1up Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114] description of I. drummondii on pages 88–89, distribution map on page 74