Cacti are plants that live in dry places.
The plural of cactus is cacti.
Do you know why cacti have spines?
The cholla cacti were beautiful but prickly.
Cacti need only a little water.
Spanish speakers usually call some cacti "cojines de suegra."
Do you know why cacti have needles?
"Do you know why cacti have spines?" – "So that I can poke you in the bum with them!"
The slimy guts of cacti can purify contaminated water, according to researchers at the University of South Florida, who presented their work at the meeting of the American Chemical Society in San Diego.
One dreams of roses, the other of cacti.
The Chihuahuan Desert is the largest ecosystem in the park. Eighty percent of the park is desert. Animals like jackrabbits, roadrunner birds and mule deer live in the Chihuahuan. Many cactus and yucca species thrive. These are succulent plants. Most succulents have thick, heavy leaves that store water. Cacti store water in their stems.
The U.S. Botanic Garden in Washington is a living plant museum, filled with the colors and scents of some 65,000 plants. In its greenhouse and outdoor gardens are orchids, cacti and succulents, carnivorous plants, bromeliads, cycads and ferns. And for much of this year, more than 75 paintings, photographs and illustrations showcasing key flora from America's national parks are on display, too.