它可以生长在高山丘岭，也可以生长在平原低谷;它可以绿汪汪地穿越茫茫荒漠，也可以守望在悬崖峭壁;它可以遍布林莽，也可以退隐沼泽;它可以走进温室，也可以踏入盐碱地……反正，只要是有土有沙的地方，就有仙人掌!记得一个炎热的夏天，连续干旱两个多月，其他花草都已经垂下了头，有的已经枯黄，而我家后院的仙人掌却像勇士一样抬着头，眺望那灰蓝灰蓝的天空，好像在说：“这地方真好，就在这里生长吧!”父亲为了栽一株爬山虎，不小心将一块绿色的仙人掌折断到地面，我以为它不几天就枯死了，可没过多久它居然“落地生根”了。
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