A rhizome is a piece of a hop plant that will sprout roots when planted, and it's what you will need to purchase if you want to add hops to your garden. Rhizomes are available from most online and local home brew shops in the spring.
More recently they have become symbolic of sinister things. A snake ring worn on the first finger suggests this is an egotistical person and they are using the snake to enhance their status. A snake ring on the second finger suggests this is a materialistic person and they are using the snake to enhance their wealth.
The prophesy of the Snake biting man's heel, but man crushing the Snake's head, is taken to refer to Jesus Christ's victory over the devil (and sin) on the cross. As a result, most symbolic meanings of the Snake are in a derogatory sense, both in traditional Chinese culture and Western culture. However, it's not always the case, and some symbolic meanings of the Snake are commendatory.