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Gastrodia elata is a chlorophyll-lacking saprophytic
orchid that inhabits the wood floor, living in symbiosis with a type
of fungus (Armillaria mellea) and the roots, which form enlarged
tuberous roots around 10cm long, similar to sweet potatoes. The
tubers gradually become hollow and lose their nutrients as the
terrestrial parts grow massively. Scapes are 0.6-1m tall, tinge
yellow-red, and wear some membranaceous ramenta. Flowers, many in
number, are yellow-brown and bloom in a racemose manner in
June-July. |
Wild plants in and around Shimane
島根とその周辺の野生植物
