ubax waxaa lagu magacaabaa a modified caleemaha dhirta, loogu talagalay afgembi abuurka. Si ka duwan laamaha caadiga ah (caleemaha), uu ka soo buro, ubax yeesho. Stem ee ubaxa waa pedicel iyo kafaalaqaade. Corolla, buro, stamens iyo pistils yinka caleemo loo sameeyay. Si loo fahmo sababta aan u baahan tahay warshadda jidhkooda oo dhan waa in la baaro si faahfaahsan dhismeedka of ubax kasta. Sidaas, at its xarunta waa pistil ah, kaas oo, inkasta oo ay magaceeda, waa "dumar" xubnaha taranka. Caadi ahaan, ku dhawaad waxaa jira stamen badan, kuwaas oo ah "lab" xubnaha taranka. In kasta oo stamen ubax iyo pistil - qaybta ugu muhiimsan waxaa ka mid ah. Of iyaga waxaa markii dambe la abuuri doonaa midhaha geedka a kuwaas abuurka waa hab lagu kalsoonaan karo faafin.
Stamen iyo pistil ka ciyaaraan door muhiim ah nolosha ee dhirta ubax. xubnaha galmada Lab of mid ka mid ah ubaxa, kaas oo ah a collection of stamens oo dhan, loo yaqaan "androecium". Mid kasta oo iyaga ka mid ah waxay leedahay "thread Staminate" iyo 4 "ah koleyga manka," maxaabiista "duster". Waxay ka kooban tahay laba qaybood, mid kasta oo ka mid ah oo, ee jeedo, waxaa jira laba godadka (qolalka ama saldhig). Waxay sameeyey oo dhan manka yaqaan. Sida laga soo xigtay filaments staminal biyaha iyo nafaqada lagu qabtay. xubnaha dumarka galmada ee ubax waa "gynoecium", taas oo, dhab ahaantii, loo yaqaan "tuntid". Waxay ka kooban tahay a "column", "ugxan" iyo "magac xumada". On this "magac xumada" iyo uu bisil manka on stamens ah. "Column" fuliya hawlaha taageerada, iyo ka mid ah "ugxan", ay ku jiraan ovules (hal ama in ka badan) koraan abuur ah ee labka iyo dheddiga. ovules waa kiishashka embriyaha, kuwaas oo si degdeg ah horumarinta iyo dhirta foomka miro. Pistil iyo stamen, nidaamka taas oo aan noqon lahaa dhamaystiran oo aan ku "nectary", emitting nectar udgoon, oo inta badan ka heli manka by cayayaanka, flitting ka ubaxa ubaxa. Perianth ka kooban yahay Corolla iyo buro. Pistil iyo stamen hareereeyeen perianth.
Waxaa jira dad badan oo kala duwan noocyada kala duwan ee ubax, taas waxaa keena joogitaanka kuwa ama xubin kale. Sidaas darteed, dhirta on kaas oo ubaxa leeyihiin pistil ah iyo stamens, waa "bisexual". Haddii ay jiraan stamens oo kaliya ama pistils keliya - warshadda waa in loo gudbiyaa sida "dioecious". "Monoecious" gudbiyo kuwa flora ah, kuwaas oo ka soo qayb galay ubaxyadii iyo stamens, iyo pistils leh. dhirta "Dioecious" waxaa loo yaqaan, isagoo pistillate kaliya ama ubaxyo staminate kaliya.
Dhismaha pistil iyo stamens sameeyay malaayiin sano. ubax waa hay'adda taranka ee angiosperms. Stamen iyo pistil siiyaan dhismaha warshad miraha (abuurka). midhihiisu u muuqataa in habka of isuga ee carpel. Isagu waa fudud (digir, plums, jeeriga) ama adag (oo ka kooban pistils dhowr dhisnayd - dhir caraf ah, u ekaayeen ubax, cornflower). Xubno badan oo flora waa kobcin.Waxa (aasaasi) pistils. kala duwanaanshaha noocyada in foomamka iyo qaab-dhismeedka ubaxa sabab u timi in koorsada ee horumar dheer ee kala duwan ee hababka pollination ay.