Chiwombankhanga crocus maluwa ndi chitsamba chosatha, dzina lina lomwe liri kolhikum. Chomera ichi ndichoyimira banja losatha, mtundu wa maluwa osatha. Ambiri a kolhikum ku Asia (pakati ndi kumadzulo), Africa (kumpoto), Europe, Mediterranean. Mitundu yoposa 60 ya maluwa tsopano imadziwika ndipo imafotokozedwa.
Gulu Oak
Kale, mtengo wamtengo unali mtengo umene pafupifupi chirichonse chinapangidwira: nyumba ndi zikepe, zida ndi zipangizo, ngakhalenso mankhwala. Mankhwala omwe amafunidwa kwambiri ndi makungwa a mthunzi. Za iye lero ndi kuyankhula. Mankhwala a makungwawa ali ndi tannin ambiri, ali ndi 20%, ndipo palinso mapuloteni, gallic ndi ellagic acids, flobaphen ndi flavonoids, levulin ndi pectin.