No cacti store water, not milk. A genus of succulent called Euphorbia leak a milky latex when damaged, they look like cacti but are not. This is probably what you are thinking of.
The latex produced by plants in the genus Euphorbia is a skin irritant and can cause temporary blindness. They are common in cacti collections, and are often sold as 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
All cacti are succulents, but not all succulents are cacti.
No, mealworms do not eat cacti and cacti do not occur naturally in the Sahara. Cacti are natives to American deserts.
There tons of genera of cacti.
Yes, cacti are freaking awesome
No, cacti do not grow in the Arctic.
Yes they do have cacti. Epiphyllum, Rhipsalis, and Schlumbergera are a few genera of cacti that grow in the rainforest.
No cacti grow naturally in the Sahara. Cacti are natives of the Americas, not Africa.
No cacti live naturally in the Sahara. Cacti are strictly natives of the Americas.
Cacti grow mostly in desert and arid areas.I bought a few miniture cacti as a present for my nephew.
Cacti is plural form for the singular cactus.