Cirsium yezoense
(Maxim.) Makino
iNaturalist· cc-by-nc
(c) 海野ふる子, some rights reserved (CC BY-NC), uploaded by 海野ふる子
iNaturalist· cc-by-nc
(c) markk178, some rights reserved (CC BY-NC)
Summary
A perennial thistle reaching 2 m (6ft 7in) in height. Hermaphroditic flowers appear from September to October, with seeds ripening in the same period. Insects pollinate the flowers. The plant grows in light sandy, medium loamy, and heavy clay soils with mildly acid to basic pH. It tolerates semi-shade and light woodland conditions but prefers moist soil.
Description
A perennial thistle reaching 2 m (6ft 7in) in height. Hermaphroditic flowers appear from September to October, with seeds ripening in the same period. Insects pollinate the flowers. The plant grows in light sandy, medium loamy, and heavy clay soils with mildly acid to basic pH. It tolerates semi-shade and light woodland conditions but prefers moist soil.
Edible Uses
Young plants are edible cooked. Seeds of all thistle species yield a useful oil by expression.
Traditional Uses
The leaves are blanched and used in soups. The root is peeled and steamed.
This uses section is brief — help expand it
Medicinal Uses
None known.
Distribution
It is a temperate plant.
Where It Grows
Asia, Japan,
Propagation
Sow seed in early spring or autumn in situ. Germination typically occurs within 2–8 weeks at 20°C. Can also be propagated by division in spring or autumn.
Other Uses
The seeds yield a good oil by expression. No details on potential yields are given.
Notes
There are about 150-250 Cirsium species. They grow in temperate regions.
Synonyms
References (3)
- Chen, B. & Qiu, Z., Consumer's Attitudes towards Edible Wild Plants, Ishikawa Prefecture, Japan. p 23 www.hindawi.com/journals/ijfr/aip/872413.pdf
- Plants for a Future database, The Field, Penpol, Lostwithiel, Cornwall, PL22 0NG, UK. http://www.scs.leeds.ac.uk/pfaf/
- Williams, D., 2017, Ainu Ethnobiology. Contributions in Ethnobiology. Society of Ethnobiology.
