|Growing on a poplar stump in Girona, Spain|
(V. Brig.) Vizzini 2014
|gills on hymenium|
|spore print is brown|
|edibility: edible or '|
Cyclocybe aegerita, also called Agrocybe cylindracea, Agrocybe aegerita or Pholiota aegerita, is a mushroom in the genus Cyclocybe which is commonly known as the poplar mushroom, chestnut mushroom, or velvet pioppini (Chinese: cha shu gu, 茶树菇, literally "Tea Tree Mushroom"). In Japan, it is called Yanagi-matsutake (Japanese:柳松茸).
It belongs to the white rot fungi and is a medium-sized agaric having a very open and convex cap, almost flat, with a diameter of 3–10 centimetres (1.2–3.9 in). Underneath, it has numerous whitish radial plates adherent to the foot, later turning to a brownish-grey colour, and light elliptic spores of 8–11 by 5–7 micrometres. The white fibre foot is generally curved, having a membranous ring on the top part which promptly turns to tobacco colour due to the falling spores. When very young, its colour may be reddish-brown and later turn to a light brown colour, more ochre towards the centre, whiter around its border. It grows in tufts on logs and holes in poplars, and other large-leaved trees.
The mushroom is cultivated commercially. It is used in Chinese cooking, both fresh and rehydrated, in various dishes, including stir-fry, soup, stew, and hot pot. It has a soft cap, and a harder stem. Picking specimens from the wild is not recommended due to the difficulty in identification.
It is cultivated and sold in the United States, Chile, Japan, Korea, Italy, Australia and China. The cultivation in the Mediterranean region is very old, e.g. it is described in the book Naturalis Historia by Pliny the Elder. In Traditional Chinese Medicine, it is often used as a diuretic.
- Mariano García Rollán, Cultivo de setas y trufas, pg. 167, MUNDI-PRENSA (2007), ISBN 84-8476-316-1 (in Spanish)
- Zhu, Maggie. "Tea Tree Mushroom (茶树菇)". Omnivore's Cookbook. Retrieved 3 August 2016.
- "Agrocybe aegerita, Chestnut mushroom, Yanagimatsutake". Medical Mushrooms .net. Retrieved 3 August 2016.
- Ying, J.Z., Mao, X.L., Ma, Q.M., Zong, Y.C. and Wen, H.A. 1987. Icons of Medicinal Fungi from China (Transl. Xu, Y.H.), Science Press, Beijing.