|
''Palafoxia'', palafox, is a genus of North American flowering plants in the Bahia tribe within the (sunflower family).〔Lagasca y Segura, Mariano. 1816. Genera et species plantarum Elench. Pl. 26〕〔(Tropicos, ''Palafoxia'' Lag. )〕 This genus is named after José de Palafox y Melzi, Duke of Saragossa (1776–1847), a Spanish captain-general, in the war against the invading armies of Napoleon. These are drought-tolerant, annual herbs growing on sandy plains, dunes, deserts (Mojave desert, Sonoran desert) and rangeland, native to the United States and Mexico. ''P. callosa'' is naturalised in Hawaii. The erect, slender stem grows 30–60 cm tall, branching in the lower half and is sparsely leaved. It is glandular and hairy on the upper parts.〔(Flora of North America Vol. 21 Page 388 ''Palafoxia'' Lagasca )〕 The glabrous, glandular leaves are lanceolate, 3–20 mm wide and 4–7.5 cm long, and are arranged alternately.〔 A few flower heads appear at the end of the upper branches. The reddish to pink ray florets have three narrow lobes. They are subtended by involucral bracts.〔 The seed-like fruit is narrow with a pappus of several pointed scales (giving rise to the common name 'Spanish Needles' for ''P. arida''). These plants self-sow freely.〔 They are attractive to bees, butterflies and birds and are used as food plants by the larvae of some Lepidoptera species including ''Schinia niveicosta'', which feeds exclusively on ''P. linearis''. Rosy Palafox (''Palafoxia rosea'') has been used in folk medicine for the treatment of fever, nausea and chills. ;Species〔(Flann, C (ed) 2009+ Global Compositae Checklist )〕〔Turner, B. L. and M. I. Morris. 1976. Systematics of ''Palafoxia'' (Asteraceae: Helenieae). Rhodora 78: 567–628〕〔(Biota of North America Program 2013 county distribution maps )〕 # ''Palafoxia arida'' B.L. Turner & Morris : Spanish Needles, Desert Palafox - Baja California Sur, Sonora, CA AZ NV UT # ''Palafoxia callosa'' (Nutt.) Torr. & Gray : Small Palafox - Coahuila, TX LA MS AR MO OK # ''Palafoxia hookeriana'' Torr. & Gray : Sand Palafox - TX # ''Palafoxia integrifolia'' (Nutt.) Torr. & Gray : Coastalplain Palafox - FL GA # ''Palafoxia lindenii'' A.Gray - Veracruz # ''Palafoxia linearis'' (Cav.) Lag. - Baja California Sur, Sonora, Sinaloa, Chihuahua, California (San Bernardino Co) # ''Palafoxia reverchonii'' (Bush) Cory : Reverchon's Palafox - TX # ''Palafoxia riograndensis'' Cory : Rio Grande Palafox - Coahuila, Texas (Big Bend area) # ''Palafoxia rosea'' (Bush) Cory : Rosy Palafox - Nuevo León # ''Palafoxia sphacelata'' (Nutt. ex Torr.) Cory : Showy Palafox, Sand Palafox, Rotting Palafox - 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Palafoxia」の詳細全文を読む スポンサード リンク
|