''Cirsium kamtschaticum'', the Kamchatka thistle, is an
Alaskan
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S. ...
and
East Asian species of plants in the tribe
Cardueae within the family
Asteraceae. The species is found in eastern
Russia (
Kamchatka Peninsula,
Sakhalin Island
Sakhalin ( rus, Сахали́н, r=Sakhalín, p=səxɐˈlʲin; ja, 樺太 ''Karafuto''; zh, c=, p=Kùyèdǎo, s=库页岛, t=庫頁島; Manchu: ᠰᠠᡥᠠᠯᡳᠶᠠᠨ, ''Sahaliyan''; Orok: Бугата на̄, ''Bugata nā''; Nivkh: ...
and the
Kuril Islands), and on certain islands of the
North Pacific: the
Aleutian Islands of
Alaska and
Hokkaido Island in northern
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
.
[Biota of North America Program 2014 state-level distribution map]
/ref>
''Cirsium kamtschaticum'' is a biennial or perennial herb up to 200 cm (80 inches) tall, with a thick underground rhizome
In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...
. Leaves are up to 40 cm (16 inches) long with thin, bristly spines along the edges. There are a few flower heads
A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...
, each head with pink or purple disc florets but no ray florets.
References
External links
Продажа семян и растений. лат. ''Cirsium'', Семейство Астровые ( Asteraceae )
photos of several species of ''Cirsium'' including ''C. kamtschaticum'', with captions and descriptions in Russian
kamtschaticum
Flora of Alaska
Flora of Eastern Asia
Flora of the Russian Far East
Plants described in 1838
Flora without expected TNC conservation status
{{Cynareae-stub