When coming from gyokuro's production, it takes the name karigane (雁ヶ音 / かりがね) or shiraore (白折 / しらおれ).
[2] Karigane has historically been the name of kukicha made from leaves used for gyokuro green tea.
However, these days the term karigane has become diverse, and is also used for any kukicha of high quality.
[3] Kukicha has a mildly nutty and slightly creamy sweet flavour.
Oversteeping or steeping too hot, as with all green teas, results in a bitter, unsavoury brew.