UW Burke Herbarium species comparison

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Cirsium remotifolium

Cirsium edule

few-leaf thistle, Pacific fringed thistle, remote-leaved thistle, weak thistle

edible thistle
Habit Tap-rooted biennial or short-lived perennial, flowering only once, 4-20 dm. tall, the stem succulent, thick below and tapering.
Leaves

Leaves green but sparsely covered with long, soft hairs on both surfaces, moderately spiny, lobed, lanceolate to oblanceolate, up to 3 dm. long.
Flowers

Heads usually borne singly at the ends of the branches;

involucre 2-4 cm. high, spider-webby, its bracts loose, not much inbricate, all slender and tapering, all but the inner with short spine tips;

flowers all tubular, bright pink-purple, the corolla tube 7-11 mm. long, the corolla lobes 5-10 mm. long;

style exerted 3-8 mm. beyond the corolla lobes;

receptacle densely bristly.

Cirsium remotifolium

Cirsium edule
Flowering time June-September July-September
Habitat Meadows, stream banks, open for, brushy slopes, from low to middle elevations in the mountains. Forest openings and edge, meadows, roadsides, and other open areas at low to middle elevations in the mountains.
Distribution
Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; Washington to California.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Sensitive in Washington (WANHP) Not of concern
Sibling taxa
C. arvense, C. brevifolium, C. brevistylum, C. edule, C. flodmanii, C. hookerianum, C. inamoenum, C. scariosum, C. undulatum, C. vulgare
C. arvense, C. brevifolium, C. brevistylum, C. flodmanii, C. hookerianum, C. inamoenum, C. remotifolium, C. scariosum, C. undulatum, C. vulgare
Subordinate taxa
C. edule var. edule, C. edule var. wenatchense
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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