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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

(Update on September 29 2011)

Tussock

Tussock (谷地坊主) called in plant ecology

A clump or tuft, as of growing grass or sedge

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Tussocks seen in the world
New Zealand

Tussock1 Tussock2
[1] Close-up showing a single tussock in decayed stage. [2] A conony of tussocks. You may be able to see 'facititative effects' of tussocks on cohabitants'. [1/2] On the mountainside of Mount Ruapehu, New Zealand, on December 17, 1996. In Tongariro National Park, a few types of tussocks were classified: Chionochloa rubra Zotov [Poaceae] = red tussock, Festuca novae-zelandiae [Syn. Festuca ovina var. novae-zelandiae] (and Festuca matthewsii) = hard tussock (and silver tussock), and Rytidosperma setifolium = bristle tussock.

Japan

Tussock3 Tussock4
[3] Carex oxyandra on Mount Usu. [4] Carex middendorffii on a post-mined Sarobtetsu mire.

Alaska

Tussock5
[5] Eriophorum vaginatum on Poker Flat after the 2004 wildfire.

References
  • Koyama, A. & Tsuyuzaki, S. 2010. Effects of sedge and cottongrass tussocks on plant establishment patterns in a post-mined peatland, northern Japan. Wetlands Ecology and Management 18: 135-148
  • Tsuyuzaki, S. & Tsujii, T. 1992. Size and shape of Carex meyeriana tussocks in an alpine wetland, northern part of Sichuan Province, China. Canadian Journal of Botany 70: 2310-2312

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