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Chih-Yi Chang, Hsy-Yu Tzeng, Yen-Hsueh Tseng
Phytokeys
Figure 4.
Holotypes of the three species of Cirsiumsect.Onotrophe in Taiwan. AC.tatakaense Y.H.Tseng & C.Y.Chang, C. Y. Chang 1444 (TCF) BC.kawakamii Hayata, T. Kawakami & U. Mori 2279 (TI!) CC.arisanense Kitam., S. Kitamura s.n. (KYO!).
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Cirsium vulgareSpear Thistle Cirsium vulgare. UK: Northumberland: Harthope Valley; 55°31'5.14"N 2° 2'25.20"W. 16 July 2009.
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Beaman Park, Davidson County, Tennessee, US
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Orinda, California, United States
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Knowstone, England, United Kingdom
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I spent time sorting out whether this was the rare native Franciscan Thistle or the invasive Bull Thistle. I'm pretty sure the "webby" fibers around the globe distinguish this as a Franciscan.
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Laura S. Walker SP
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Bishop, California, United States
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California, United States
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close up image of Cirsium discolor PASTURE THISTLE at the James Woodworth Prairie Preserve - a singe flower at full bloomThis species is featured in the soon-to-be-published book, Abundant Splendor: Wildflowers of the Prairie. Contact frank@black-sweater-art.com for more information.
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Chiriqui, Panama
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Nevada, United States
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Chih-Yi Chang, Hsy-Yu Tzeng, Yen-Hsueh Tseng
Phytokeys
Figure 5.
Comparison of the morphological characters amongst the species of Cirsiumsect.Onotrophe in Taiwan. AC.tatakaense Y.H.Tseng & C.Y.Chang BC.kawakamii Hayata CC.arisanense Kitam.: 1 leaf 2 capitula 3 inner phyllary 3’ middle phyllary 3” outer phyllary 4 floret 4’ floret (pappus removed) 5 synantherous 6 style branches 7 achene 7’ achene with pappus.
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Beaman Park, Davidson County, Tennessee, US
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Knowstone, England, United Kingdom
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Newnes, New South Wales, Australia
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Bishop, California, United States
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field image of Cirsium discolor PASTURE THISTLE at the James Woodworth Prairie Preserve - a stand amidst other species
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Cartago Province, Costa Rica
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Selbitz, Bayern, Deutschland
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Nevada, United States
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Mittenwald, Bavaria, Germany
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Chih-Yi Chang, Hsy-Yu Tzeng, Yen-Hsueh Tseng
Phytokeys
Figure 6.
Chromosome number of the two species of Cirsiumsubsect.Nipponocirsium Kitam. in Taiwan. A 2n = 64, C.tatakaense Y.H.Tseng & C.Y.Chang B 2n = 64, C.kawakamii Hayata. Scale bar: 5 μm.
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Beaman Park, Davidson County, Tennessee, US