Duck Mountain Provincial Park
Note that the stamens and style have been cut off for the purpose of this photo. The petals, divergent here, become reflexed as the flower develops.
I am following Checklist of the Vascular Plants
of Saskatchewan in calling this species Vaccinium oxycoccus.
publication recognizes the varieties intermedium and oxycoccus.
Budd’s Flora (BF) refers to this species as
Oxycoccus palustris, and places genus Oxycoccus in family Vacciniaceae. It
calls the varieties quadripetalus and microcarpus.
Flora of Alberta (FOA) refers to the varieties as separate species, Oxycoccus quadripetalus and Oxycoccus microcarpus, and places genus Oxycoccus in family Ericaceae.
According to Budd’s Flora, the two varieties are not cleanly separated and specimens can be found possessing characteristics of both varieties. Therefore, I am not assigning a variety name to the specimen illustrated on this web site.
Because of the variety of treatments, the notes below do not exactly match the keys in Budd’s Flora and Flora of Alberta.
Characteristics of Vaccinium oxycoccus var. intermedium (= var. quadripetalus)
Characteristics of Vaccinium oxycoccus var. oxycoccus (= var. microcarpus)
Oxycoccus: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species.
Vacciniaceae: Answers to key questions in Budd's Flora leading to this family.