Difference between revisions of "Spiraea douglasii var. roseata"
in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 3: 192. 1961.
Endemic
Basionym: Spiraea roseata Rydberg in N. L. Britton et al., N. Amer. Fl. 22: 250. 1908
Synonyms: S. idahoensis A. Nelson
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|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Spiraeeae | |tribe=Rosaceae tribe Spiraeeae | ||
Revision as of 00:32, 28 May 2020
Leaf abaxial surfaces glabrous or pubescent. Inflorescence branches glabrescent or glabrous. Pedicels glabrescent or glabrous. Flowers: hypanthia and sepals glabrescent or glabrous.
Phenology: Flowering Jun–Aug; fruiting Jul–Nov.
Habitat: Stream banks, woodland margins, meadows, roadsides
Elevation: 300–2500 m
Discussion
P. A. Rydberg (1917) considered Spiraea roseata to be a hybrid of S. densiflora and S. menziesii (here S. douglasii var. menziesii), and considered S. idahoensis to be a distinct species. At this time, it is unclear whether it is indeed a hybrid or a geographic variant of S. douglasii. The occurrence of specimens in the Columbia River region suggests a hybrid origin.
Selected References
None.
Lower Taxa
None.