Herbs annual or biennial.Root stout, tuberlike, and napiform or fusiform, or branched and not tuberlike.

一二草本根粗壮，管状，和芜菁状孔纺锤形的，分枝而不管状。

In Giardia, proteins involved in iron-sulfur cluster assembly and protein folding appear closely related to mitochondrial homologs and localize to a relict mitosome (6,7).

在贾第虫硫化铁族集中有蛋质，蛋质折叠与线粒体同系物有紧密关系，位于残余体的纺锤体中（6，7）。