Olu luhlobo lwe izityalo ezinobungozi okanye izihlahla Ziyinxalenye yosapho lwe-Asteraceae, oluvela kwimimandla esemantla nakwiindawo ezininzi zoMzantsi Merika, nezithe zanwenwela kulo lonke elaseYurophu.
Kukho iintlobo ezahlukeneyo malunga Iindidi ezingama-30 zezityalo i-ragweed yonyaka okanye engagungqiyo, ekhula ngokukodwa kwimimandla ethe tyaba, enobushushu obuphantsi kunye nomhlaba oyisanti. Ezinye zeentlobo ze-ragweed ziyakwazi ukuvelisa umungu omkhulu kwaye ngenxa yokusasazeka kwe-anemochoric imele enye yazo oyena nobangela wefiva.
I-Ragweed ene-herbs okanye izihlahla zifutshane, kodwa ezinye iintlobo Zingakhula zibe malunga ne-4 yeemitha ubude.
Zineziqu ze-hispid ezimile ngokuthe tye, ezinokufumaneka kwizityalo ezixineneyo ezimalunga nesiqingatha semitha ububanzi kunye namasebe amile okwe-basal, apho iingcambu zale shrub zihlala zikhomba kwaye zinzulu kakhulu, isenza kube nzima ukuzisusa.
Amagqabi anayo yi-bipinnathifid, enekona emile, kunye neepetiyoli ezibonakala zinamaphiko, ngwevu-luhlaza okanye umbala wesilivere ebusweni begqabi nangaphantsi, ezichaseneyo emazantsi kwaye ngokuthe ngqo phakathi kwamasebe aphezulu esityalo kwaye kufanelekile ukuthi ezi zityalo zi-monoecious, zivelisa ii-inflorescence ezinje nge-spike ezixhaswa ngamagqabi ancamathele kwiintyatyambo zesilisa, ziluhlaza-tyheli ngombala, zifana nediski kwaye zinokulinganisa malunga neemilimitha ezi-3 ububanzi malunga.
Iintyatyambo zamabhinqa ze-ragweed zinombala omhlophe, omile ngokulula, kunye nee-axillaries zikwindawo esezantsi ukuba iintyatyambo zesilisa kwaye ziswele ipapo.
Ukuchumisa ngokwesondo kwesityalo kuveliswa ngumoya, oziinkozo zomungu, zona ezijika zibe sisityalo esinye Iyakwazi ukuvelisa ubungakanani ukuya kuthi ga kwi-1.000 lezigidi Ngexesha elinye, nangaphezulu, oku kwenzeka ngexesha lokufuma okuphezulu naphakathi kwexesha lasehlotyeni.
Isiqhamo esiveliswa sisityalo sigutyungelwe ngameva, esimile ngokufana ne-ovoid, ethi inembewu enye encinci ngaphakathi Umbala omdaka ngombala kwaye ubunjwe njengentloko. I-Ragweed luhlobo lwesityalo esinokufumaneka kuyo yonke indawo imimandla enesimo sezulu esenyakatho yehlabathi nakumantla oMzantsi Merika.
Zizityalo ezikhetha imihlaba yesanti kakhulu, engenachume kangako, ene ukwenziwa kwealkaline kancinci Kwaye ziifophophi rhoqo. Uhlobo lweRagweed luzenzekelayo emendweni, kwiindawo ezisemaphandleni, nakwiindonga zemilambo efumaneka emathafeni.
Le shrub isetyenziselwa amayeza endalo ngenxa iipropathi ezichasayo, i-febrifuge kunye ne-emetic enamagqabi.
Zingasetyenziselwa ukunyanga inyumoniya, izigulo ezinje ngomkhuhlane, isicaphucaphu, urhudo kunye nezinye ezifana nokudumba kwezihlunu. Zingasetyenziswa nangaphandle ukulwa ezo zilunywa zizinambuzane kwaye ijusi yazo inezinto ezithile ezinokubulala iintsholongwane ezinokusetyenziselwa ukunyanga amanxeba anokusuleleka nangasiphi na isizathu.
Kwangokunjalo neengcambu zesityalo xa zomile, Ingasetyenziselwa ukulungiselela ukumiliselwa, ukuzisebenzisa ngale ndlela kunyango lweengxaki ezinokuthi zibekho ekuyeni exesheni kunye nokubetha. Kufuneka kwakhona ukuba umungu we-ragweed usetyenziswa lushishino lwamayeza ukulungiselela amayeza ukumelana neempawu zokungabikho komzimba.