Any of several erect biennial herbs of temperate eurasia having stout taproots and producing burs .

欧亚温带地区直立的两年生草本植物，具有粗大的主根和刺果。

Elsewhere , trees must send taproots deep into the hard baked desert soil to draw on underground water .

其它地方树木的主根必须深入受炙烤而坚硬的沙漠底部的土壤以吸取地下水。

Botanically these taproots belong to the apiaceae or umbelliferous family of the genus ; daucus and known scientifically as daucus carota .

植物学的这些主根属于伞形科家庭的一类；而且胡萝卜属合乎科学的当做胡罗卜。

The monthly variation in ga content was similar among wild and cultivated liquorices . The amplitude of variation of ga in rhizomes was greater than that in taproots and inconstant roots .

野生甘草与栽培甘草地下部分甘草酸含量的月变化规律相似,且根茎中甘草酸含量比主根、不定根变化幅度大。

Other species have long deep taproots .

其它物种有着悠久深厚部位.