Key to Acamptopappus

View taxon page for Acamptopappus

(For a list of species in Acamptopappus, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Heads radiate, generally solitary; 

involucre 

Group of bracts more or less held together as a unit, subtending a flower, fruit (acorn cup), or inflorescence.

bell-shaped to hemispheric, 7–10 mm diam ..... A. shockleyi

1' Heads discoid, generally in rounded to flat-topped clusters; involucre hemispheric to spheric, 8–16 mm diam ..... A. sphaerocephalus

2. Leaf faces densely rough-puberulent ..... var. hirtellus

2' Leaf faces glabrous (margins sometimes sparsely rough-puberulent) ..... var. sphaerocephalus

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