English: Rock's peony; Tree peony.
Region: China, Gansu.
Chinese: Pinyin; Zǐbān mǔdān.
Habitat; tolerant to drought and frost, salt and base.
Use: ornamental; traditional Chinese medicine.
BotanyShrub; woody; 2 to 3 m tall; crown width 3 to 4 m.
Flowers: bright; black, purple; brown-red spots at the base of petals; large, 18 to 25 cm diameter; strong fragrance, dominating other peony.
Petals: hard, robust; very smooth when young, turn brown and flabby in rainy weather; in full bloom, they begin to wilt, what was exuberant before becomes heavy, turns into the opposite, it pulls down.