Panarctic Flora


343203c Puccinellia phryganodes subsp. sibirica (Hadac & Á. Löve) Elven


Northern Fennoscandia: Frequent
Kanin - Pechora: Scattered
Polar Ural - Novaya Zemlya: Scattered
Taimyr - Severnaya Zemlya: Scattered
Anabar - Onenyo: Rare
Kharaulakh: Rare
Yana - Kolyma: Scattered
West Chukotka: Scattered
Wrangel Island: Scattered
East Chukotka: Scattered
Northern Alaska - Yukon: Presence uncertain
Northern arctic Tundra: Presence uncertain
Mid Arctic Tundra: Scattered
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Scattered

2n= (1) 20 21 (3x). - Europe (Norway). - Nygren in Löve and Löve (1948, 2n = 20, 'corrected' to 2n = 28 by Löve and Löve 1975a to fit their concept); Engelskjøn (1979); Borgen and Elven (1983).
(2) 28 (4x). - Europe (N), Russia (N), Siberia (N), Far East (N). - Sokolovskaya (1955); Nygren in Jørgensen et al. (1958); Sokolovskaya and Strelkova (1960); Zhukova (1967a).
(3) 42 (6x). - Europe (Norway). - Borgen and Elven (unpubl.). See note below.

Geography: European (N) - Asian (N): NOR RUS SIB RFE ALA?

Notes: Tzvelev (1964c) made a mistake, replacing "sibirica" with "asiatica", when publishing the name subsp. asiatica. This is not a correctable error according to the Code (McNeill et al. 2006). His subsp. asiatica is then illegitimate as subsp. sibirica Hadac & Löve has priority.

There is a discrepancy between the ploidy information and morphology. Sørensen identified the northern Fennoscandian plants morphologically with his "Siberian type". The northern Norwegian plants are mainly triploid (at least four independent reports from different localities) but also Nygren's report of 2n = 28 (Nygren in Jørgensen et al. 1958) was from northern Norway. A hexaploid is known from northern Norway (Borgen and Elven in comment), probably very local autoploidy in a single coarse clonal plant. The main ploidy level of the Fennoscandian plants is the same as that of Sørensen's morphologically different "Greenland type". The Russian reports are of tetraploids. The northern Norwegian plants are sterile, only rarely producing culms and inflorescences and never dehiscing anthers or fruits.

The northern Alaskan plants may belong within subsp. sibirica. Plants at Barrow were found to be pollen sterile (Elven and Solstad in 2005), and Packer and McPherson (1974) reported a tetraploid chromosome number in plants from there.

Higher Taxa