Last week I went to Mt. Hakodate and walked down halfway and went up taking the trail for Senjojiki, a field located east of the highest peak. Then I took a trail to go back to the parking. On the way, kusafuji(草=grass 藤=wisteria) flowers are in full bloom. Its scientific name is vici a cracca.
Also I found many buds of Ooubayuri. Ooubayuri in kanji characters are 大姥(oouba)百合(yuri). 大姥 means "old woman" and 百合 is translated in English as lily. When they are in bloom, they lose leaves and a leaf in Japanese is a homonym of a tooth. The plants lose all their leaves(=teeth) when they are in bloom, hence they were named as mentioned.
Ooubayuri needs more than ten years to have flowers and after they bloom, they die out. You can enlarge all the pictures.
Akiko lives in a city next to Hakodate and loves to drive around Hakodate and surrounding area. I hope people who visit or live in the Southwest area of Hokkaido come to love the area, too. 函館の隣町在住で道南エリアのドライブ大好きAkikoです。道南を訪れたり、住んでいる人が土地を好きになってくれたらなぁ、と思います。