Plant Adaptations to Dry Environments

Taproot: A taproot is a single main root (often with smaller, outward roots) that grows into the soil to tap underground moisture.
Shallow Roots: Some plants have fibrous roots that branch out just beneath the soil surface, forming a dense network that can absorb dewdrops or rain before they evaporate.
Spines: Some succulents can absorb water through their corky spines, while others have downward-pointing spines that channel water toward the roots where it can be absorbed.

Plants that grow well in arid habitats have adaptations that help them conserve water, cope with sun exposure and temperature extremes, repel thirsty animals, and ensure reproduction.

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Adaptation: The Basics

Table of contents heading: Adaptation: The Basics

Plants in the Desert Garden have adaptations that help them survive in dry habitats. Photo by Max Tepper. | The Huntington.

Adaptations are changes in life forms over time that improve their potential to survive. In deserts and other arid habitats, plants have adaptations that help them collect and store water, enabling them to withstand long dry periods.

Deserts are open environments where plants can easily access all the air and sunlight they need. The most limited resource in deserts is water. These regions typically receive less than 10 inches (25 centimeters) of precipitation (rain or snow) each year.

Plants that grow well in arid habitats have adaptations that help them: