640102 Spiraea stevenii (C.K. Schneid.) Rydb.
Distribution
West Chukotka: Frequent
South Chukotka: Frequent
East Chukotka: Frequent
Western Alaska: Frequent
Northern Alaska - Yukon: Frequent
Central Canada: Rare
Southern Arcti Tundra: Presence uncertain
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Rydb., N. Amer. Fl. 22: 247 (1908). - Spiraea beauverdiana var. stevenii C.K. Schneid., Bull. Herb. Boissier, sér. 2, 5: 348 (1905). Described from Kamtchatka (the Russian Far East; ex Herb. Steven, G-BOISS) and from Kotzebue Sound (Alaska; W-HOFFM).
- Spiraea beauverdiana auct., non C.K. Schneid. (1905).
2n=
(1) 14 (2x, x = 7). - Far East (the Magadan area). - Zhukova et al. (1973).
(2) 18 (2x, x = 9). - Far East (N, S). - At least four reports.
Geography: Asian (NE) - amphi-Beringian: RFE ALA CAN.
Notes: Murray and Elven: Uttal (1973) concluded that the name Spiraea beauverdiana, previously often applied for the arctic plants (e.g., by Hultén 1968a), has been misapplied and in its strict meaning refers to the distinctly non-arctic S. betulifolia Pall. var. aemiliana (C.K. Schneid.) Hara 1952 described from the Riishiri Islands in northern Japan. Several differential characters are cited. Spiraea stevenii is now generally accepted to be the correct name for the arctic plants.
Higher Taxa
- Spiraea [6401,genus]