黑牡丹与姬牡丹是两种较为近似的仙人掌科植物,其形态奇特,似岩石而又有生命,花色鲜艳,自然别致,充满野趣,国内外有不少爱好者收集栽培。黑牡丹为仙人掌科岩牡丹属多肉植物,具肥大的直性肉质根,植株初为单生,成年后会在基部萌发仔球,呈丛生状,体表密布三角形疣突,疣突中间具沟,沟内密生细短的绒毛,表皮粗糙,墨绿色至黑色。花紫粉色、钟状,花期秋末至初春,通常在阳光充足的白天开放,傍晚闭合,如此昼开夜闭,单朵花 Black Peony and Ji Peony are two more similar cactaceae plants, their unique shapes, like rocks and life, bright colors, natural chic, full of rustic charm, there are many fans at home and abroad to collect cultivation. Black Peony is a cactus genus of the genus Succulents, with a hypertrophic straight fleshy root, plant early as solitary, adult germinated at the base of the ball, was clustered, surface warty triangular wart, condyloma middle groove , Short and narrow fluff in the trench, rough skin, dark green to black. Flowers purple, bell-shaped, flowering late autumn to early spring, usually open during the sunny daytime, closed at night, so open the night and night closed, single flower