Cactus, like other plants, uses photosynthesis to get energy.
mode of neutrition of cactus plants
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the leaves of a cactus help get the suns nutrition foe the plant to grow None pretty much and formally proper cactus have no leaves only it's convergently evolved cousins do.
An edible plant is one that can be eaten as food, normally for sustenance and nutrition, but possibly just for the moisture content (as with cactus).
a cactus
Various species of prickly pear and cholla Claret cup cactus Hedgehog cactus Peyote Rainbow cactus Corncob cactus Living rock cactus Button cactus Eagle claw cactus (aka Turk's head cactus) Fish hook barrel cactus Pincushion cactus Strawberry cactus several others
No, a cactus does not have a thorn. A cactus has spines.
cactus and cactus water
It probably isn't a good idea to drink the water from the saguaro cactus [Carnegiea gigantea]. A cactus plant tends to store its water in bitter or toxic forms. This discourages predators from raiding precious water supplies. So a wiser choice are the saguaro's fruits, flowers, and seeds as sources of nutrition and water. Particularly the fruits and the seeds are succulent sources of drink and food.
A cactus candy is simply a candied cactus
There are two types of cactus, columnar cactus and climbing cactus. Climbing cactus e.g dragon fruit plant.
The fishhook cactus may be either the fishhook barrel cactus (Ferocactus wislizenii) or Mammillaria dioica, also called the strawberry cactus or California fishhook cactus.
some are the Joshua Tree, cactus some kinds of cactus is, Nopal cactus, Prickly pear cactus, and Black Lace Cactus :)