University of Waterloo

Heterotheca villosa var. nana

Heterotheca villosa var. nana (A. Gray) Semple is a less-hairy more glandular race native to the western Great Plains and into the Rocky Mts. It has been treated as H. villosa var. horrida (Rydb.) Harms, a name that does not have nomenclatural priority, and as H. horrida Rydb. It is a diploid taxon.

Heterotheca villosa var nana Fig 48 Semple 1996

Heterotheca villosa var nana, CO

Heterotheca villosa var. nana, Semple & K. Shea 2222, Arapahoe Co., Colorado

Heterotheca villosa nana5768 dried heads

Heterotheca villosa var. nana, heads, Semple 5768, Moffat Co., Colorado

Heterotheca villosa nana map Fig 40 Semple 1996

Heterotheca villosa var. nana, distribution Fig 40 Semple (1996)

Last update 19 May 2023 by J.C. Semple

© 2023 J.C. Semple, including all photographs unless otherwise indicated