細さい根こん

also: ほそね

Meanings

1

noun

rootlet; small root

botany

Botanical term for a small or fine root, often a branch of a larger root system.

Kun'yomi reading; may be used in non-technical contexts or as a descriptive phrase, but the on'yomi さいこん is more common in botany.

根ね
General term for 'root'; 細根 specifically refers to small or fine roots.
ひげ根ね
Fibrous root; a mass of fine roots, whereas 細根 can refer to any small root.

Compound of 細 (fine, small) and 根 (root). The on'yomi reading さいこん is standard in botanical contexts.