What are xerophytic plants?
xerophyte, any plant adapted to life in a dry or physiologically dry habitat (salt marsh, saline soil, or acid bog) by means of mechanisms to prevent water loss or to store available water. Succulents (plants that store water) such as cacti and agaves have thick, fleshy stems or leaves.
What are xerophytes Where are they found?
Xerophytes are plant species that have adapted to live in dry or dessert conditions. Xerophytes have evolved to bear and survive in extreme and harsh environments. They can be found from the arid and hot deserts of Africa to the freezing ice covered Arctic.
What are the characteristics of xerophytes?
Xerophyte survival characteristics:
- Thick cuticle.
- Stomatal closure.
- Reduction in # of stomata.
- Stomata hidden in crypts or depressions in leaf surface (less exposure to wind and sun).
- Reduction in size of transpiration surface (lower leaf only).
- Increased water storage.
Which of the following is a xerophyte?
So, the correct answer is ‘Opuntia’.
Is xerophytic a Pteridophyte?
Habitat: Pteridophytes grow in moist and shady places, e.g. Ferns, Horsetail. Some are aquatic (Azolla, Marsilea), xerophytic (Equisetum) and epiphytic (Lycopodium).
What are the xerophytic adaptation?
Plants with adaptations which allow them to live in hot and dry conditions are called xerophytic . The following adaptations allow plants to survive in the hot desert environment: Water storage – some plants, known as succulents, store water in their stems, leaves, roots or even fruits.
Is Nerium a xerophyte?
Depending on the shape of the leaves and their structure, xerophytes are classified into following four classes: Trichophyllous: Leaves are covered with hairs; e.g., Nerium, Calotropis.
What are xerophytes short answer?
A xerophyte (xero meaning dry, phyte meaning plant) is a plant which is able to survive in an environment with little availability of water or moisture.
How are xerophytic plants adapted?
Xerophyte adaptations increase water intake, limit water loss, and store water efficiently. Water intake adaptations include deep or widespread roots, and high salt content to increase osmosis. Xerophytes have thick cuticles, lost or finely divided leaves, reduced stomata, and CAM photosynthesis.
Which of the following is a xerophytic adaptation?
Presence of long tap root system is one of the specific xerophytic adaptation. Root system in xerophytic plant is well developed the root are long, branched and reach deep into the soil to absorb more water. In Alfalfa root may reach upto 130 feet deep in soil. Stomata are less in outer epidermis and are sunken type.
Is Nerium a Xerophyte?
Which of the following is a xerophytic Pteridophyte?
Example of xerophtic pteridophytes are Casuarina, Nerium etc.