Archivos de diario de diciembre 2021

08 de diciembre de 2021

White-flowered red trillium

Trillium erectum, commonly called the red trillium, is a wide-ranging species of flowering plant in eastern North America. Trillium erectum var. album, sometimes called the white-flowered red trillium, is a white-petaled form of Trillium erectum, but beyond that there is little agreement.

Plants of the World Online (POWO) claims that T. erectum var. album ranges across three Canadian provinces and 22 U.S. states. The list of provinces and states in POWO is taken verbatim from the Flora of North America (FNA), which POWO cites as an authority. For a long time I subscribed to the treatment of Trillium erectum var. album in FNA but I now believe the variety is confined to the southern Appalachian Mountains. The white-petaled forms outside of this region are best thought of as (nameless) forms of T. erectum. The following article explains this in more detail:

Publicado el diciembre 8, 2021 11:01 TARDE por trscavo trscavo | 0 comentarios | Deja un comentario