Cacti are not generally considered good to eat. It's a common misconception that cacti have water in them, but you'll find it's more of a slimey liquid that'll probly make you feel ill.
Some cacti, such as Peyote and San Pedro are also psychedelic, as they contain Mescaline. Although not poisonus per se, it would not be advisable to ingest them as food as the experience can last up to 12 hours, which can be terrible under the wrong conditions.
Other than that, there is no danger so long as you don't eat them and stay clear of the spines :)
Yes, Christmas cacti are not poisonous to humans or pets.
Yes, Christmas cacti are not poisonous to humans or pets.
Yes, Easter cacti are considered non-toxic to cats.
Yes, Thanksgiving cacti are not toxic to cats.
Yes, Christmas cacti are not toxic to cats.
Yes, Thanksgiving cacti are not toxic to cats.
Yes, Christmas cacti are not toxic to cats. They are safe to have in your home if you have pets.
One common way is by poisonous chemicals that the plant contains. For example, the tobacco plant contains nicotine, which is extremely poisonous to many predators. Another way is by thorns and/or spines that make the plant difficult to eat. For example, cacti.
Yes: Prickly Pears, Barrel cacti, Saguaro cacti, Aztekium cacti, and Echinopsis cacti a.k.a the hedgehog cactus
cactus for a single plant cacti for plural
Many cacti are recognized as having hallucinogenic or narcotic properties and therefore can also be regarded as being poisonous. Cactus fruits are generally regarded as safe, however.
All cacti are succulents, but not all succulents are cacti.