藻 is built from the 艹 (grass (top)), 氵 (water (left)), and 喿 (chirping (in 操·燥)) components.
It belongs to a phonetic family with 繰, 操, and 燥 — they share the 喿 component and the reading ソウ.
A common word using 藻 is 藻 (も), meaning “algae; waterweed”.
Don't confuse it with 操, 燥, and 繰.
