Euphorbia sieboldiana(Natsu-toudai)


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.


Tawara, Kushimoto Town
Season / Time zone
Spring(March,April) / Daytime
Weather conditions
Sunny Cloudy
Frequency of appearance
According to seasons


20 minutes’ walk from JR Kii-Tahara Station

Recommended spot

JR Koza Station > JR Kii-Uragami Station (Shimizu-toge Pass Trail)