Title Local Plants: Ubame-gashi ( Oak; Quercus phillyreoides)

  • Kagawa
  • Tokushima
Topic(s):
$SETTINGS_DB.genreMap.get($item) National Parks/Quasi-National Parks
Medium/Media of Use:
Interpretive Sign
Text Length:
≤250 Words
FY Prepared:
2019
Associated Tourism Board:
setonaikaikokuritsukoentokushimakenchiikitagengotaiokyogikai

ここで見られる植物:ウバメガシ(Oak; Quercus phillyreoides)

常緑樹のウバメガシは、高さによって低木とも高木とも考えることができ、中には10mの高さに達するものもあります。沿岸部や急斜面な崖地の痩せた土壌を含む温暖な地域でゆっくり育ち、強風が打ち付けるような場所にも耐えることができます。ウバメガシは徳島沿岸で多く見られ、鳴門公園などで見ることができます。その硬い材は古くから日本各地で炭を作るのに使われてきており、これには備長炭として知られる高級品種も含まれます。

ウバメガシの葉は楕円形でたまに細長いものもあり、上半分の周りは鋸歯状になっています。5月頃になると黄色い小花が多数咲き、雄花が新枝の下部からぶら下がる一方、雌花はこれらの新枝の上部に咲きます。楕円形や紡錘形の果実は、成熟すると茶色に変化し、枝から落ちます。


Local Plants: Ubame-gashi ( Oak; Quercus phillyreoides)

This evergreen plant can be considered either a shrub or a tree, depending on its height: some specimens reach as high as 10 meters. It grows slowly in warmer regions, including in the barren soil of coastal areas and mountainous cliffs, and stands strong even in locations that are buffeted by strong winds. The ubame-gashi oak is emblematic of the Tokushima coast, where it can be found in Naruto Park and elsewhere. Across Japan, its hard wood has long been used to produce charcoal, including a high-grade variety known as binchotan.

The leaves of the ubame-gashi oak are oval, sometimes elongated, and are serrated around the upper half. Around May a multitude of small yellow flowers bloom; the male flowers hang from the lower side of new branches, while female flowers bloom on the upper part of these new branches. The oval or spindle-shaped fruits turn brown and fall off the branch when ripe.


Search