The medicinal part referred to is one of the nutritional organs of vascular plants, which is the underground part of the plant body developed from the embryonic root.
指药用部位是维管植物的营养器官之一,由胚根发育而来的植株体轴地下部分。

Young roots at an early growth stage with relatively tender tissues.
新生或生长早期的根，组织较嫩。

Old roots with more developed and hardened tissues.
生长时间较长而木栓化明显的根。

Tender root portions are used as the medicinal part.
质地柔嫩的新鲜根段入药。

Fine roots or small rootlets are used medicinally.
细小的分枝根或末端细根入药。

The root tip growth zone often including the root cap and meristematic tissue.
根的顶端生长区，常含根冠与分生组织。

Adventitious roots arising from stems or leaves rather than the embryonic root.
从茎或叶等部位发生的根而非胚根。

Fibrous roots consisting of many slender roots are used medicinally.
由多条细长根组成的须根系入药。

Aerial roots that grow in air and aid in moisture uptake or support.
生长在空气中用于吸湿或支撑的根。

Block-shaped root.
块状的根。

Heartwood formed in the woody tissue of roots.
根部木材中形成的心材部分。

Bark of the Root.
根的树皮。

The inner layer of root bark typically closer to the cambium.
根皮的内层组织，通常更接近形成层。

Phloem tissue within the root bark.
根皮中的韧皮部组织。

Juice obtained by pressing or cutting roots.
从根部压榨或切取获得的汁液。

When the seed germinates, the root that grows vertically into the ground is formed by the division and elongation of the embryonic root cells.
种子萌发时，由胚根细胞分裂和伸长形成的垂直向地下生长的根。

The roots that originate from the sheath part of the main root's interior. Their growth direction often forms a certain angle with the main root and can branch repeatedly.
由主根内部中柱鞘部位发生的根。其生长方向往往与主根成一定的角度，可反复分枝。