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1)  knurled thumb screw
滚花蝶形螺钉
2)  fly head screw
蝶形螺钉
3)  knurled screw
滚花螺钉
4)  screw with knurled head
滚花头螺钉
5)  butterfly screw
蝶形螺钉蝶形螺母
6)  knurled thumb screw with waisted shank
滚花不脱出螺钉
补充资料:蝶形花科

科名Papilionaceae蝶形花科
描述Papilionaceae蝶形花科,双子叶植物,约480余属,12000种,广布于全世界,我国连引入的有118属,1097种,各省均有分布。本科亦有人将其置于豆科Leguminosae中作为亚科处理(参阅Leguminosae条)。草本、灌木或乔木,直立或攀援状;叶通常互生,复叶,很少为单叶,常有托叶;花两性,两侧对称,具蝶形花冠;常组成总状或圆锥花序,少为头状或穗状花序;萼管通常5裂,上部2裂齿常多少合生;花瓣5,覆瓦状排列,位于近轴最上、最外面的1片为旗瓣,两侧多少平行的两片为翼瓣,位于最下、最内面的两片,下侧边缘合生成龙骨瓣;雄蕊10,合生为单体或二体(通常9枚合生为一管,对着旗瓣的1枚离生而成9+1的二体,稀为5枚各自合生为相等的二体),很少为全部离生。有时1枚退化,余9枚合生为单体,花药同型或异型,2室,药室常纵裂,有时顶孔开裂;雌蕊1,子房上位,1室,胚珠2至多数生于沿腹缝线着生的侧膜胎座上;荚果不开裂或开裂为2果瓣,或由2至多个各具1种子的荚节组成;种子通常无胚乳,胚具弯曲、贴生于子叶下缘的胚根;子叶厚。我国的主要属有:Astragalus,Campylotropis,Caragana,Dalbergia,Derris,Desmodium,Glycine,Glycyrrhiza,Hedysarum,Indigofera,L'espedeza,Millettia,Flemingia,Mucuna,Oxytropis,Phaseolus,Pueraria,Rhynchosia,Sophora,Uraria,Vicia,Vigna等等。

科号恩格勒:98哈钦松:148
分布量世界:480属,12000种;中国:124属,1097种
引种状况非引种
所有属AbrusAdans.,AtylosiaWightetArn.,AeschynomeneL.,BowringiaChamp.exBenth.,AlhagiGagnebin.,AlysicarpusNeck.exDesv.,ButeaRoxb.exWilld.,AmblytropisKitagawa,CajanusDC.,CalophacaFisch.,CampylotropisBunge,AmorphaL.,CanavaliaDC.,AmphicarqaeaElliot,CaraganaFabr.,CatenariaBenth.,Centrosema(DC.)Benth.,ApiosMedik.,Chesneya.Lindl.,ArachisL.,ChristiaMoench.,CicerL.,CladrastisRaf.,ClianthusSoland.exLindl.,ClitoriaL.,CochlianthusBenth.,AstragalusL.,ColuteaL.,CorethrodendronFisch.etBasin.,CoronillaL.,CraspedolobiumHarms,CrotalariaL.,CytisusL.,KummerowiaSchindl.,DalbergiaL.f.,LaburnumMedik.,LathyrusL.,DendrolobiumBenth.,DerrisLour.,DesmodiumDesv.,LensMill.,DicermaDC.,LespedezaMichx.,LotononisEckl.etZeyh.,LotusL.,LoureaNeck.exDesv,LupinusL.,MaackiaRupr.,Macrotyloma(WightetArn.)Verdc.,MecopusBenn.,MedicagoL.,DolishosL.,DolichovignaHayata,MelilotusMill.,MillettiaWightetArn.,MucunaAdans.,DumasiaDC.,DunbariaWightetArn.,EriosemaDc.,ErythrinaL.,NeodielsiaHarms,EuchrestaBenn.,EurysolenPrain,EversmanniaBunge,OnobrychisMill.,OnonisL.,OphrestiaH.M.L.Forbes,FlemingiaRoxb.,FordiaHemsl.,OrmocarpumBeauv.,OrmosiaG.Jacks.,OxytropisDC.,PachyrhizusRich.exDC.,ParaglycineF.J.Herm.,ParochetusBuch.-Ham.,GalactiaP.Br.,GalegaL.,GaleobdolonAdans.,GeissaspisWightetArn.,PhaseolusL.,GlycineWilld.,GlycyrrhizaL.,GueldenstaedtiaFisch.,HalimodendronFisch.,PhylaciumBenn.,PhyllodiumDesv.,PiptanthusSweet,PisumL.,Podocarpium(Benth.)YangetHuang,PongamiaVent.,PriotropisWightetArn.,PsophocarpusNeck.,PsoraleaL.,PterocarpusL.,PuerariaDC.,PycnosporaR.Br.,IndigoferaL.,RhynchosiaLour.,UrariaDesv.,RobiniaL.,UrariopsisSchindl.,ViciaL.,VignaSavi,SalweeniaE.G.Baker,SesbaniaScop.,WhitfordiodendronElmer,WistariaSpreng.,WisteriaNutt.,ShuteriaWightetArn.,SmithiaAit.,SophoraL.,SpartiumL.,SpatholobusHassk.,SphaerophysaDC.,StizolobiumP.Br.,StracheyaBenth.,StylosanthesSw.,ZorniaJ.F.Gmel.,Tibetia(Ali)H.P.Tsui,TadehagiOhashi,TephrosiaPers.,TeramnusP.Br.,TeyleriaBacker,ThermopsisR.Br.,TrifidacanthusMerr.,TrifoliumL.,TrigonellaL.,HedysarumL.,AntheroporumGagnep.,AgatiAdans., 
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