can be recognized by its pale green or whitish stems (gray when old), often shiny, and its rayless flowerheads with short, rounded, pale-colored phyllaries. Leaves are hairless, glandular and resinous, usually lined by small, irregular teeth.
Flowerheads are in small clusters (usually four or five), attached by short, bracted stalks; they contain between 12 and 27 ray florets, their corollas around a quarter of an inch long. Phyllaries have a resin pocket at the tip; they occur in three to six series.
Least common of three varieties of isocoma acradenia is var bracteosa
, found in salt flats in the deserts of southern California; this has spine-tipped phyllaries. The other two have rounded phyllary tips - var acradenia
with entire leaves and var eremophila
with toothed or pinnately lobed leaves.