Prunus virginiana
Choke Cherry
Flower Side Cut Open
Struthers Lake Regional Park
29-May-2011
Note the hypanthium is free from the ovary. Note also that some of the sepal teeth are tipped with reddish glands.
Finally, note that the key to the species in Flora of Alberta requires petioles not glandular; NOT [petioles usually glandular at the upper end]. However, P. virginiana does have glands at the upper end of the petiole. This is confirmed by Flora of the Great Plains. The rest of the answers to the keys are listed below.
Virginiana: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species.
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Prunus: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus.
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Rosaceae: Answers to key questions in Budd's Flora leading to this family.
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