Despite its Japanese name natsu-toudai, which means a "Euphorbia that blooms in summer," it is a spring flower.
Even though its Japanese name natsu-toudai means that it is a “Euphorbia (toudai) that blossoms in summer (natsu),” the plant actually blooms at the beginning of spring – earlier than any other member of Euphorbia. This plant’s leafstalks seem to emerge from the five leaflets of its leaves to produce flowers. The white sap released when the plant’s stem is broken is poisonous, so you have to be very careful with it.
20 minutes’ walk from JR Kii-Tahara Station
Mifune Matsuri Festival – a Finale of the Kumano Taisha Grand Shrine Matsuri Festival (One of the Annual Grand Festivals Held at Kumano Hayatama Taisha Grand Shrine)
（Kumano Hayatama Taisha Reitai-sui, Mifune Matsuri）