Isocoma acradenia var. bracteosa (Greene) G.L. Nesom (redirected from: Isocoma bracteosa)
Family: Asteraceae
[Haplopappus acradenius subsp. bracteosus (Greene) H.M. Hall,  more...]
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Leaf blades mostly 50-150 mm, margins of proximal usually shallowly toothed, of distal entire or serrulate. Involucres 7-8 mm. Phyllary apices spinulose-aristate. Florets 20-27. 2n = 12.

Flowering Aug-Oct. Salt flats; 0-20 m; Calif.

In the limited zone of contact between vars. bracteosa and acradenia, intermediates are rare. The two differ in chromosome number and significantly in habitat (altitudes are essentially non-overlapping). Field studies may show them to warrant distinction at specific rank.