HORTICULTURE

Detailed explanation-1: -Water is gathered from the soil by the root of the system. Water moves from the root system into the shoot system, which delivers the water throughout the plant. The plant needs this water to survive and grow. The onyanga has a wide, shallow root system.

Detailed explanation-2: -A tree with only two leaves The Welwitschia’s name comes from its scientific name, Welwitschia mirabilis, though it’s sometimes referred to in regional languages as n’tumbo (“blunt” in reference to its stubby stature), onyanga (onion) and, in Afrikaans, tweeblaarkanniedood (two leafs that cannot die).

Detailed explanation-3: -Welwitschias have several special adaptations that allow them to live in the desert. First, they have unique structures on their leaves that allow them to harvest moisture from the dew that forms at night. They also have the ability to to perform CAM photosynthesis; they are the only gymnosperm that have this ability.

Detailed explanation-4: -welwitschia, (Welwitschia mirabilis), also called tumboa, unusual gymnosperm plant that is the sole member of the gnetophyte family Welwitschiaceae. Welwitschia is found only in the Namib desert of southwestern Africa near the coast of Angola and Namibia as well as inland to about 150 km (more than 90 miles).