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 Canada 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.
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Adventitious bud Facts for Kids. Kiddle Encyclopedia.