Species Information

Kingdom: Plantae
  Phylum: Anthophyta
    Class: Dicotyledoneae
      Order: Asterales
        Family: Asteraceae
          Genus: Cirsium
            Species: wrightii

Wright's Marsh Thistle - Cirsium wrightii

Wright's Marsh Thistle

Image courtesy of New Mexico Rare Plants

556095

Species Extent (New Mexico)

General Description

Robust biennial or monocarpic perennial; stem strict, 1-2.5 m tall; basal leaves ample, succulent, 30 cm or more long, sinuate or pinnatifid, weakly prickly with short black spines, nearly glabrous, the thin weblike wool tardily deciduous; stem leaves similar, sessile, strongly decurrent, gradually reduced in size up the stem; heads terminating thin branches in naked panicles, hemispherical, 2-3 cm across; phyllaries small, somewhat glandular with papillose projections on upper surface; outer phyllaries subulate, cuspidate-tipped; corollas white or pink; style tips about 3 mm long. Flowers August to October.

Status

Global Rank: G2

State Rank: S2

State Status: E

Federal Status: Listed Threatened [LT]

USFS Status:

BLM Status: BLM SENSITIVE

SWAP Status:

NMRP Strategy Status: Strategy Species

Observations in Natural Heritage New Mexico Database

Number of Subpopulations: 13

Number of Mapped Locations: 141

Number of Observations: 219

Observation date range: 08-18-1899 to 10-16-2024

External Links

View More Information about this species at:
  NatureServe Explorer
  New Mexico Rare Plants Website
  Environmental Conservation Online System (ECOS)

Species Related Publications

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