type of herb, pigsty
苙 has two distinct meanings that do not share a clear single center: a type of herb and a pigsty. The herb sense is a plant name, while the pigsty sense is a structure for pigs.
苙 combines the grass radical 艹 with 立, but the historical origin is uncertain. The herb meaning likely relates to the plant radical, while the pigsty meaning may be a phonetic loan or a separate usage.
Grass 艹 standing 立 upright: picture a tall herb growing straight up, or imagine a pigsty made of standing grass walls.
For リュウ, picture a pigsty made of grass where a little pig named Ryu lives: Ryu -> リュウ.
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