| 词条 | Xanthisma paradoxum |
| 释义 |
| regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Asterids | ordo = Asterales | familia = Asteraceae | tribus = Astereae | genus = Xanthisma | species = X. paradoxum | binomial = Xanthisma paradoxum | binomial_authority = (B.L. Turner & R.L. Hartm.) G.L. Nesom & B.L. Turner |synonyms=*Haplopappus spinulosus var. paradoxus (B.L. Turner & R.L. Hartm.) Cronquist
|synonyms_ref=[1] }}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.[2][3]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.[2][4] References1. ^Tropicos {{Taxonbar|from=Q15572778}}2. ^1 [https://www.biodiversitylibrary.org/item/47140#page/142/mode/1up Nesom, G.L. & B.L. Turner. 2007. Taxonomic review of the Xanthisma spinulosum complex (Asteraceae: Astereae). Phytologia 89:(3):371-389.] 3. ^Flora of North America v 20 p 393. 4. ^[https://www.biodiversitylibrary.org/page/767178#page/328/mode/1up Turner, Billie Lee, & Hartman, Ronald Lee. 1976. Infraspecific caterogies of Machaeranthera pinnatifida (Compositae). Wrightia 5(8): 308-315.] 6 : Astereae|Flora of the Colorado Plateau and Canyonlands region|Flora of Arizona|Flora of Colorado|Flora of Utah|Endemic flora of the United States |
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