Polygonum oxyspermum Mey. et Bge. und P. Baii Bab. ssp. norvegicum Sam. n. ssp
Series: Acta Horti Bergiani -- Bd. 11, no. 3
Publisher: Almqvist & Wiksell
Published: 1931
Place of publication: Uppsala
Language: swe
Number of pages: 80
Notes: Cover-title.