One can get up to 9-months in prison in Arizona, US for harming which plant or animal?

The saguaro is a tree-like cactus species in the monotypic genus Carnegiea, that can grow to be over 12 meters (40 feet) tall.

Harming or vandalizing a saguaro in any manner, such as shooting them (sometimes known as "cactus plugging") is illegal by state law in Arizona. When houses or highways are built, special permits must be obtained to move or destroy any saguaro affected. Exceptions to this general understanding exist; for example, a private landowner whose property is 10 acres (4 hectares) or less, where the initial construction has already occurred, may remove a saguaro from the property. This is common when the cactus falls over in a storm, its location interferes with a house addition, or it becomes a potential hazard to humans.

In 1982, a man was killed after damaging a saguaro. David Grundman was shooting and poking at a saguaro cactus in an effort to make it fall. An arm of the cactus, weighing 230 kg (500 lb), fell onto him, crushing him and his car. The trunk of the cactus then also fell on him. The Austin Lounge Lizards wrote the song "Saguaro" about this death.

Contrary to published statements, no law mandates prison sentences of 25 years for cutting a cactus down; however, it is considered a class-four felony with a possible 3-year, 9-month maximum sentence.