Robert W. Freckmann Herbarium
University of Wisconsin - Stevens Point

Vascular Plants

Plants of Wisconsin

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Cactaceae: Cactus

Plants with thick succulent stems covered with large spines. Solitary flowers with no stems, very showy, yellow (in ours), cup-like with many petals and stamens. The stigmas crowd the center. Fruit is spiny and fleshy.
Flora of North America: Discussion, key to genera (opens new window)
Flower Formula:  Sepals x; Petals i Glossary

Genus 
(Click for Taxon List)
WI Taxa
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Opuntia
prickly-pear
2 Photo of Opuntia Images   Information

Vascular Plants

Plants of Wisconsin

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