Home/Species/ Short-style Thistle

Cirsium brevistylum

Cronq.

Short-style Thistle

G5Secure Found in 11 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.153521

Element CodePDAST2E0B0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderAsterales

FamilyAsteraceae

GenusCirsium

Other Common Names

Chardon à styles courts (FR)

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Conservation Status

Rank MethodExpertise without calculation

Review Date2016-08-26

Change Date2016-08-26

Range Extent Comments

B.C. to CA, east to n. ID and w. MT. Peripheral.

Ecology & Habitat

Description

Short-styled Thistle is an herbaceous perennial with thick, succulent, sparingly branched stems that are 4-25 dm high, and which arise from a taproot. The clasping, alternate leaves are pinnately lobed or toothed with spines along the margins. The foliage is thinly to densely covered with tangled white hairs. A few short-stalked flower heads are clustered at the tips of the stems. Each head is 2-4 cm high and has 2-3 series of linear, nearly non-overlapping involucral bracts, which are sparsely to densely covered with long, tangled hairs, the outermost of which have short, erect spines. There are numerous tubular, purplish red disk corollas that are 16-24 mm long. Ray flowers are lacking. The seed has a pappus.

Diagnostic Characteristics

The purplish flowers and the very narrow, tapered involucral bracts without a greatly thickened midvein separate this species from the other native CIRSIUM species in our area.

Other Nations (2)

United StatesN4

Province	Rank	Native
Washington	SNR	Yes
Montana	S3	Yes
Idaho	SNR	Yes
Oregon	SNR	Yes
California	SNR	Yes

CanadaN5

Province	Rank	Native
British Columbia	S5	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (11)

Oregon (2)

Area	Forest	Acres
Hebo 1a	Siuslaw National Forest	13,930
Roaring River	Mt. Hood National Forest	27,316

Washington (9)

Area	Forest	Acres
Eagle Rock	Mt Baker-Snoqualmie National Forest	34,064
Jupiter Ridge	Olympic National Forest	10,148
Madison Creek	Olympic National Forest	1,223
Mt. Baker West	Mt Baker-Snoqualmie National Forest	25,390
Mt. Baldy	Olympic National Forest	3,557
South Quinault	Olympic National Forest	11,081
Thorp Mtn.	Wenatchee National Forest	22,717
Tumwater	Gifford Pinchot National Forest	8,676
Upper Skokomish	Olympic National Forest	9,311

References (5)

Goeden, R. D. and D. W. Ricker. 1987. Phytophagous insect faunas of the native thistles CIRSIUM BREVISTYLUM, CIRSIUM CONGDONII, CIRSIUM OCCIDENTALE, and CIRSIUM TIOGANUM, in southern California. Annals Entomological Society America 80:152-160.
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Pemberton, R. W., Turner, C. E. and S. S. Rosenthal. 1985. New host records for tephritid flies (Diptera) from <i>Cirsium </i>and <i>Sussurea </i>thistles (Asteraceae) in California. Proceedings of the Entomological Society of Washington 85(4):790-794.
Turner, C. E., R. W. Pemberton and S. S. Rosenthal. 1987a. Host range and new host records for the plume moth PLATYPTILIA CARDUIDACTYLA (Lepidoptera: Pterophoridae) from California thistles (Asteraceae). Proceedings Entomological Society Washington 89(1):132-136.
Turner, C. E., R. W. Pemberton, and S. S. Rosenthal. 1987b. Host utilization of native CIRSIUM thistles (ASTERACEAE) by the introduced weevil RHINOCYLLUS CONICUS (COLEOPTERA: CURCULIONIDAE) in California. Environmental Entomology 16:111-115.