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(Upload on September 18 2011) [ 日本語 | English ]

Spodiopogon Trin. (オオアブラススキ) O-abura-susuki (オオアブラススキ, 大油薄/大油芒), tall oilgrass or Siberian spodiopogon Lifeform: perennial grass, with thick, creeping rhizome and 100-150 cm in height Distribution: eastern Asia, Japan (Hokkaido - Kyushu) - China - Korea - parts of Siberia Habitat: sunny, well-drained grasslands, forest edges, slopes, and disturbed open areas Chromosome number: 2n = 40

Synonyms Andropogon sibiricus (Trin.) Steud. Saccharum sibiricum (Trin.) Roberty Discarded varieties - var. grandiflorus L. Liu ex S. M. Phillips et S. L. Chen - var. purpurascens (Honda) Honda (f. purpurascens (Honda) Ohwi) - var. sibiricus - var. tenuis (Kitag.) Kitag. - var. tomentosus Koisdz.

Spodiopogon sibiricus in Japan

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[1-3] in Jindai Botanical Gardens, Chofu, central Japan, on July 30 2025. [4-6] at NiPR (National Institute of Polar Research), Tachikawa City, Tokyo, on September 8 2011.