Bud
A bud usually occurs in the axil of a leaf or at the tip of a stem. They are one way plants can reproduce asexually. They connect with phloem and xylem to get nourishment.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/FallPando02.jpg/250px-FallPando02.jpg)
Some plants normally develop adventitious buds on their roots. The buds can grow quite a distance from the plant. Shoots that develop from adventitious buds on roots are termed suckers. They occur in many grasses, quaking aspen and creeping thistle. A famous quaking aspen known as the Pando grew from one trunk to 47,000 trunks by adventitious bud formation on a single root system.