What plant group possess the taproot system?
There is no one plant group that possesses the taproot system. It is found across quite a few. Wikipedia writes: A plant’s taproot is a straight tapering root that grows vertically down. It forms a center from which other roots sprout. Plants with taproots are difficult to transplant. The taproot is why dandelions are hard to uproot — the top is pulled, but the long taproot stays in the ground, and re-sprouts. A taproot system contrasts to a fibrous root system, with many branched roots. Most trees begin life with a taproot, but after one to a few years change to a wide-spreading fibrous root system with mainly horizontal surface roots and only a few vertical, deep anchoring roots. A typical mature tree 30-50 m tall has a root system that extends horizontally in all directions as far as the tree is tall or more, but well over 95% of the roots are in the top 50 cm depth of soil. Many taproots are modified to become storage organs.
