Acamptopappus sphaerocephalus

(Harvey & A. Gray) A. Gray

Proc. Amer. Acad. Arts 8: 634. 1873

Common names: Rayless goldenhead
Basionyms: Haplopappus sphaerocephalus Harvey & A. Gray
Treatment appears in FNA Volume 20. Treatment on page 185.
Leaf faces glabrous or hirtellous. Heads in loose, corymbiform arrays. Involucres hemispheric to globose, 7–10 mm wide. Rays 0.

Discussion

Varieties 2 (2 in the flora).

The two varieties were mapped as geographically intermingling in southern California (M. A. Lane 1988). Considerable variation in expression of vestiture occurs in the area where the hirtellous-leaved plants grow and identifications should be recognized as arbitrary.

References

None.

Key

1 Leaf margins and faces hirtellous Acamptopappus sphaerocephalus var. hirtellus
1 Leaf margins and faces glabrous, or margins sometimes hirtellous Acamptopappus sphaerocephalus var. sphaerocephalus