Cirsium aridum-Cirsium pulcherrimum (Rydb.) K.Schum.

국표에는 없다.

Related name

• Cirsium pulcherrimum
• Cirsium aridum

Common name

• Cedar Rim thistle, Flora of North America Vol. 19

Flora

Entry for Cirsium pulcherrimum (Rydberg) K. Schumann var. aridum (Dorn) D. J. Keil [family COMPOSITAE]

Herbarium

Flora of North America (FNA)

Collection

Flora of North America

Resource Type

Reference Sources

Entry From

Flora of North America, Vol 19,

Names

Cirsium pulcherrimum (Rydberg) K. Schumann var. aridum (Dorn) D. J. Keil [family COMPOSITAE], Sida, 21: 215. 2004

Cirsium aridum Dorn [family COMPOSITAE], Vasc. Pl. Wyoming ed., 2, 304, plate [p. 305]. 1992

Treatment Author(s)

David J. Keil

Information

Stems often clustered from branched rootstock, 15–40 cm, bases not thickened. Adaxial leaf faces gray- to white-tomentose. Heads 1–4, in compact arrays. Cypselae without stramineous apical collars.

Cirsium aridum in Global Plants on JSTOR

Cirsium pulcherrimum, the Wyoming thistle , is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the western United States, primarily in the state of Wyoming but also in surrounding areas (Montana, Colorado, eastern Idaho, western Nebraska, northeastern Utah, and the Black Hills of South Dakota).

Cirsium pulcherrimum is a perennial herb up to 90 cm (36 inches or 3 feet) tall, with a large taproot, blooming more than once (unlike many of its relatives, which die after blooming). Leaves are up to 25 cm (10 inches) long with thin spines along the edges of the leaves. There are a few flower heads, each head with pink, purple or cream-colored disc florets but no ray florets.

Varieties

• Cirsium pulcherrimum var. aridum (Dorn) D.J.Keil - Carbon, Fremont, + Sweetwater Counties in Wyoming
• Cirsium pulcherrimum var. pulcherrimum - most of species range

Cirsium pulcherrimum - Wikipedia

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