A pair of Texas rainbow cacti in bloom near El Paso, their globe-shaped stems topped with large, multicolored flowers. Photo: Megalibrarygirl, via Wikimedia Commons (CC
A mature clump of lace hedgehog cactus in full spring bloom, its magenta flowers opening in unison. Photo: National Park Service, via Wikimedia Commons (Public
A horse crippler grows flush with the ground, its ribs crowned here with ripening red fruit. Photo: U.S. Army Corps of Engineers, Tulsa District, via
A mature tasajillo loaded with bright red fruit, the display that earns it the name “Christmas cactus.” Photo: Patrick Alexander, via Wikimedia Commons (CC0) Cylindropuntia
A healthy clump of Western Blue Flag in a mountain meadow near Squilchuck State Park, Chelan County, Washington. Photo: Thayne Tuason, Wikimedia Commons (CC BY-SA
Pencil Cholla growing in a desert wash alongside ocotillo, Nude Wash, Anza-Borrego Desert State Park, California. Photo: Krzysztof Ziarnek (Kenraiz), Wikimedia Commons (CC BY-SA 4.0)
Giant Trillium growing along the Coon Creek Trail, Montaña de Oro State Park, California. Photo: Joyce Cory (docentjoyce), Wikimedia Commons (CC BY 2.0) Trillium chloropetalum,
A mature Desert Holly shrub on open desert pavement near Shoshone, California. Photo: Stan Shebs, Wikimedia Commons (CC BY-SA 3.0) Atriplex hymenelytra, commonly called Desert
A mature Bladderpod shrub blooming among desert scrub near Joshua Tree National Park, California. Photo: brewbooks, Wikimedia Commons (CC BY-SA 2.0) Peritoma arborea (also known
A Sierra tiger lily stalk carrying a dozen nodding orange flowers in the Sierra Nevada. Photo: Dcrjsr, via Wikimedia Commons (CC BY 3.0) Lilium parvum,
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