Botanists and Horticulturists are biologists who study cactus plants [Cactaceae family] and African violets [Saintpaulia spp].
They would be called Horticulturist.
african violets, geraniums, monstera deliciosa, spider plants, christmas cactus
Pear Cactus is used to help with diabetes, but no studies prove that Pear Cactus will cure diabetes.
The list of plants that are pretty and safe for pets are extensive and available on several websites. Among the lists are African violets, Boston ferns, Christmas cactus, spider plants, etc.
Seeds
This is not helpful. Oh well, we can all use some laughter in our life. Some common names of houseplants are; Ivy, creeping charlie, Bostom ferns, African violets, philidandrons, pothos, some types of cactus to name a few.
A botanist studies plants and their adaptations.
Peyote is a cactus found in Mexico and Southwestern US with hallucinatory properties. All cacti have seeds.
it need 100 letres
Cacti grow naturally only in the Americas, not on the African savanna.
Much of the desert is just sand. However, not all of it is, especially the fringes of it. The Sahara Desert Plant Life: The type of plants that you find in the Sahara Desert are cactus, African Welwitchsia, cypress, and oleander.
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