星球属,有星球、鸾风玉、般若、瑞风玉四个相似种。它们共同特征是在变态茎的棱岭上或在表皮上。有着一种极短的白色圆形的卷丛毛状物,有规则地在棱岭上或不规则地在表皮上分布,似繁星点点,勤开花,花大色美,如丝娟蝉翅。星球属原产于墨西哥北部中部,美国也有产。该地区气候极端干旱,旱期又长,昼夜温差大,因其生性强壮,栽培不难。幼苗一般嫁接在三棱箭上,容易杂交,所以园艺品种极多,前些时,在我国南北方有人杂交成功。 Planet genus, a planet, wind jade, Prajna, Ruifeng jade four similar species. Their common feature is on the ridge of the metamorphosis stem or on the epidermis. There is a very short white round cluster hairy, regularly distributed on the ridge Ridge or irregularly on the epidermis, like starry, ground flowers, large flowers and beautiful flowers, such as silk Juan Cicada wings. The planet is native to northern central Mexico, the United States also has production. The climate in this area is extremely arid, with a long dry season and a large temperature difference between day and night. Due to its strong nature, cultivation is not difficult. Seedlings are generally grafted on the triangular arrow, easy to cross, so a lot of horticultural varieties, some time ago, some people in our north and south crossbred success.