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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 May 23 2003. Last revised on July 10 2007)

Flora

Flora (pl. floras or florae) (植物相)

The plant species found in one or more regions, or eras (Dunster & Dunster 1996)

How to use (Examples)

  • Flora of Japan
  • Flora of Hokkaido
  • Flora of Sapporo
  • Flora of Mount Usu
  • Flora of lawn in the campus of Hokkaido University

Flora lists in this site

Biota

biota = fauna + flora

Case: Characteristics of flora on Mount Koma

Based on researches in 2000

Seventy-five seed plant species
Common species on mountainous, volcanic areas
+
(Specimen collected from the mountain)
Coastal plant species

Ex. Chimaphila umbellata (L.) W. Barton: collected from the southwestern slope at ca 500 m in elevation at at August 3, 2000. This species generally establish in forests near sea coast.

Alpine and/or subalpine plant species

Ex. Campanula lasiocarpa Cham.: collected from the southwesten slope at August 3, 2000. This species is an alpine plant.

Carnivorous plant species

Ex. Drosera rotundifolia L.: collected from the southwestern slope at ca 850 m in elevation at August 13, 2000. This species is a typical carnivorous plant.

These specimens have been stored in the Hokkaido University Herbarium.

What we can say from the flora on Mount Koma

  1. We have to consider the effects of sea coast flora on vegetation.
  2. Tree line is depressed, perhaps due to volcanic activities.
  3. Soil nutrients have been low, and thus carnivorous plants may establish.
References

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