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any species of the genus Hieracium of the family Asteraceae (asteraster
[Gr.,=star], common name for the Asteraceae (Compositae), the aster family, in North America, name for plants of the genus Aster, sometimes called wild asters, and for a related plant more correctly called China aster (Callistephus chinensis
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 family), widely distributed perennials, chiefly of open fields. The small, dandelionlike flower heads are borne in clusters at the top of a long, hairy stem; the basal leaves are also hairy. Some species of the W United States are used for forage; in the East, hawkweeds are generally considered pests. In the fall the orange hawkweed, or devil's-paintbrush, the rattlesnake weed, and the king devil often turn whole fields a ruddy orange or yellow. Other species are red or white; a few are cultivated in rocky soil where other plants cannot grow. In folklore, hawks sharpened their eyesight by eating hawkweed sap. Hawkweed is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Asterales, family Asteraceae.
References in periodicals archive ?
Cipriotti PA, Collantes MB, Rauber RB, Braun K, Escartin C (2007) Evaluacion del Estado de Invasion de Hiracium pilosella en los Pastizales de Tierra del Fuego: Region del Ecotono.
4) Tan solo nos hemos permitido incluir el taxon Hieracium pilosella, ambiguo y muy generico, que bien podria implicar desdoblamientos.
pilosella (Gawronska-Grzywacz and Krzaczek 2006, Karunen, Hakala, and Heinonen 1984, Krzaczek et al.
Chapman HM, Parh D, Oraguzie N (2000) Genetic structure and colonizing success of a clonal, weedy species, Pilosella officinarum (Asteraceae).
Significance of rabbits for the population regulation of Hieracium pilosella in Breckland.
Romero Zarco Hieracium bauhinii Besser Pilosella piloselloides subsp.
Pilosella, por ser plantas muy pequenas, presentar laminas espatuladas de margen entero e hidatodos inconspicuos.
Dens Leonis qui pilosella folio minus villoso: Doria quae Jacobaea orientalis limonii folio: Titanokeratophyton quod Lithophyton marinum albicans.
Following a long-term project on the difficult genus Pilosella (Asteraceae), EGIDO & MATEO (2013) describe three new species in the alpine range of the Cantabrian Range.
two perennial grass species that dominate Nenzlinger Weide, and Hieracium pilosella L.