Yama ai (Mercurialis leiocarpa) - center (277 C)
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| Museum number | 277 |
|---|---|
| Uemura number / title | ; "Haze-some 25" |
| Folder location | 4th shelf |
| Sample location | center (277 C) |
| Fiber type | - |
| Color | dark brown stains |
| Dyestuff (Japanese common name) | 山藍 ; Yama ai |
| Dyestuff (botanical name) | Mercurialis leiocarpa Siebold et Zecc. |
| Plant part | leaf / fresh |
| Dyestuff extraction | rubbed onto the fabric |
| Auxiliary agent in dye bath | - |
| Mordant | - |
| Other auxiliary agent | - |
| Uemura's notes | After collecting the leaves, they were left for a while until they became blue; and then rubbed onto the fabric. At first, the rubbed color was blue, however eventually discolored. The dyeing technique was read in a classic poem in the Manysh () ,from the 7th -8th century AD; and recorded as "Ao-zuri no koromo () in the Kojiki (), from 712 AD, Japan, and "Ao-zurin no hou ()" in the Jyougan-shiki () from the 8th century AD, Japan. |
| Uemura's date | Kyoto |