39 

 Spiraea x pyreunidata 



SPECIES INFORMATION 



A. CLASSIFICATION 



1. SCIENTIFIC NAME: Spiraea x pyramidata Greene. 



2. COMMON NAME: pyramidal spiraea. 



3. FAMILY: Rosaceae (Rose Family). 



4. GENUS: According to Hitchcock et al. (1955- 

 1969) , there are about 70 species in the genus 

 Spiraea . These species occur primarily in the 

 temperate zone of the Northern Hemisphere. Dorn 

 (1984) recognized only three species within the 

 state of Montana, and did not include S. x 

 pyramidata in his treatment. 



5. SPECIES: Spiraea x pyramidata has been described 

 as the putative hybrid of a number of different 

 species in past. The most recent study of this 

 taxon supports the theory that the suspected 

 parents are S. betulifolia var. lucida and S. 

 douqlasii (Hess 1969) . Other synonyms for this 

 species include S. menziesii Hook. ssp. pyramidata 

 Piper and S. tomentulosa Rydb. (Hitchcock et aJL. 

 1955-1969) . 



B. PRESENT LEGAL OR OTHER FORMAL STATUS 



1. FEDERAL STATUS ^ 



a. U.S. FISH T^D WILDLIFE SERVICE: None. 



b. U.S. FOREST SERVICE: None. 



2. STATE: Spiraea x pyramidata is currently listed 

 by the Montana Natural Heritage Program (Shelly 

 1989) as "apparently secure globally, although it 

 may be quite rare in parts of its range, 

 especially at the periphery" (global rank = G3G4) . 

 In Montana, it is listed as "critically imperiled 

 because of extreme rarity" (state rank = SI) . 



None of the state ranks listed above currently 

 provide any direct legal protection for S. x 

 pyramidata . 



