This cacti is an epiphytic plant which means within it's natural habitat it grows on another plant (tree), for support. The Rat's tail grows stems up to a few feet long, that hang and display brownish colored spines, which can be a bit sharp (do take care when handling). These stems are approximately 0.5 in/12.7mm --- 1 in/25.4mm thick. The flowers are a very attractive (2in - 4in / 5cm - 10cm wide) pink tubular type that usually bloom within spring for up to 5 days. These flowers will grow from any part of the stem and you can expect plenty of them.