Question

Describe the type of vegetation found in deserts.

Answer 1

1. Vegetation is sparse and dominated by xerophytic plants adapted to very low, irregular rainfall.
2. Succulents (e.g., many cacti, some euphorbias) that store water in fleshy stems or leaves.
3. Plants with reduced or modified leaves (small, leathery, waxy leaves or spines/thorns) to cut transpiration and deter grazing.
4. Deep‑rooted trees and shrubs (phreatophytes, e.g., Acacia) that send long taproots to reach groundwater roots are reported up to 30 m.
5. Very shallow, widespread root systems in some plants allow them to quickly absorb brief surface moisture after rain.
6. Drought‑deciduous species that shed leaves or become dormant during the driest periods to conserve water.
7. Ephemeral annuals whose seeds remain dormant for years and germinate, flower and set seed rapidly after rare rains.
8. Thorny shrubs, coarse grasses and scrubby bushes in areas with slightly more moisture; some deserts have patches of grass or thorn scrub.
9. Oasis and riparian vegetation (e.g., date palms, denser shrubs, cultivated crops) where groundwater or surface water is present.
10. Many plants show physical/behavioural adaptations, such as waxy cuticles, sun‑avoiding leaf orientation, water storage, and dormancy, to survive heat, dry winds, and low humidity.