Cactaceae

Edward F. Gilman

The publication provides a comprehensive overview of Opuntia spinosissima, commonly known as the Prickly Pear Cactus. This native species, which is at risk of extinction in Florida, forms irregular clumps or shrub-like mounds in sandy soils and has a coarse texture. The plant’s modified stems, often mistaken for leaves, are covered with long spines and smaller glochids that can cause irritation. It thrives in full sun and well-drained soils, demonstrating high tolerance to drought, heat, and salt. The cactus produces bright red, cup-shaped flowers and edible fruits that mature in mid to late summer. The publication also discusses the plant’s uses in landscaping, its propagation methods, and its resistance to pests and diseases. Original publication date October 1999.

Jonathan H. Crane, Carlos F. Balerdi, andCarlos F. Balerdi

Edward F. Gilman

This document provides a detailed overview of the prickly pear cactus (Opuntia spp.), a plant native to the southern United States, including Florida. It describes the plant’s physical characteristics, such as its height, spread, and distinctive plate-like stem sections. The document highlights the plant’s adaptability to various soil types and its high drought tolerance, making it suitable for hot, dry conditions. Additionally, it covers the plant’s ornamental features, including its colorful flowers and edible fruits, and notes its minimal pest and disease issues. The document also outlines propagation methods and optimal growing conditions for the prickly pear cactus. Original publication date October 1999.