Leaves that have a small surface area lose less water.
The root systems are large and there's not enough water or nutrients to support growth for many plants close together.
Because there's hardly any water for the plants to live in deserts...
The vast majority of desert plants do have leaves. Only some succulents, such as the cacti, have evolved without leaves. This is to prevent the lost of water in the plants.
Small leaves lose much less water to transpiration and evaporation than do large leaves.
Small leaves minimize water loss.
They minimize water loss.
Yes, there are some plants in the desert with long leaves. A few examples:Palm treesYuccasSotol
Most desert plants evolved according to their environment, an environment in which conservation of moisture is paramount. The broad surface of a leaf would transpire too much moisture away from the plant in the hot, dry desert, so "leaves" are an almost unseen feature of most desert plants.
Only those desert plants that have the ability to store water in their stems or leaves are called succulents. Cacti, agaves, aloes, some euphorbias are examples.
Wild donkeys in the desert eat off the land and its surrounding. The donkeys have adapted and will eat plants and leaves.
Most desert plants have the same parts as plants from areas with more rainfall. Some, such as cacti, have lost their leaves and replaced them with spines. Some plants grow leaves during rainy seasons and then shed them during periods of drought. They may do this several times each year. Other plants allow their leaves to shrivel during drought and then spring back to life after a good rain.
Yes, there are some plants in the desert with long leaves. A few examples:Palm treesYuccasSotol
The vast majority of desert plants do have leaves and few have only spines.
Desert
Most desert plants evolved according to their environment, an environment in which conservation of moisture is paramount. The broad surface of a leaf would transpire too much moisture away from the plant in the hot, dry desert, so "leaves" are an almost unseen feature of most desert plants.
Desert ecosystem have plants with wide spreading roots and spiny leaves.
Scale like leaves
Many desert plants have flat leaves so your question is invalid.
Slows down evaporation of water from the pores of the leaves.
The rainforest plants have big flat leaves so they can absorp lots of water.The desert plants don't have big flat leaves.
desert, xerophytic plants
Desert plants have evolved to store water. They have needles instead of leaves. They have spongy stems to store water. They only flower in times of good rain.
The waxy coat helps to reduce water loss from the leaves.