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Xanthisma paradoxa : ウィキペディア英語版 | Xanthisma paradoxa
''Xanthisma paradoxum'' is a plant species native to the "Four Corners" region where Colorado, Arizona, New Mexico and Utah meet. It is known only Montezuma County (Colorado), San Juan County (Utah), and Apache County (Arizona). The species is named for the Town of Paradox, Colorado, where the type specimen was collected. It grows in disturbed sites, washes, desert scrub and open pinyon-juniper woodlands.〔(Nesom, G.L. & B.L. Turner. 2007. Taxonomic review of the ''Xanthisma spinulosum'' complex (Asteraceae: Astereae). Phytologia 89:(3):371-389. )〕〔(Flora of North America v 20 p 393. )〕 ''Xanthisma paradoxum'' is a branching herb up to 15 cm (6 inches) high. It has deeply dissected basal leaves which are persistent and dense, plus narrow linear leaves on the lower half of the stems.〔〔(Turner, Billie Lee, & Hartman, Ronald Lee. 1976. Infraspecific caterogies of ''Machaeranthera pinnatifida'' (Compositae). Wrightia 5(8): 308-315. )〕 ==References==
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