A mature clump growing among saguaros near Organ Pipe Cactus National Monument, Arizona. Photo: Krzysztof Ziarnek, Kenraiz / Wikimedia Commons (CC BY-SA 4.0) Opuntia engelmannii,
A mature Claret Cup Cactus mound in full bloom, tucked beneath a sandstone ledge. Photo: NPS/Neal Herbert (Public Domain) Echinocereus triglochidiatus, known as Claret Cup
A stand of Texas paintbrush in bloom at Wichita Mountains Wildlife Refuge. Photo: U.S. Fish and Wildlife Service (Public domain) Castilleja indivisa, commonly known as
Texas madrone’s broad, rounded crown on a limestone hillside. Photo: Gary M. Stolz/U.S. Fish and Wildlife Service (Public domain) Arbutus xalapensis, known in Texas as
Mexican buckeye in full bloom, its pink flowers opening before the leaves. Photo: Stan Shebs/Wikimedia Commons (CC BY-SA 3.0) Ungnadia speciosa, commonly called Mexican buckeye,
California wild grape climbing along a creek corridor. Photo: Peter Pearsall/U.S. Fish and Wildlife Service (Public domain) Vitis californica, commonly called California wild grape, is
A sego lily blooming near Kolob Canyons, Utah, showing its slender stem and two nodding, cup-shaped flowers. Photo: Wikimedia Commons (CC BY-SA 3.0) Calochortus nuttallii,
A scarlet monkeyflower clump in bloom, showing its sprawling habit and abundant red flowers. Photo: Dcrjsr / Wikimedia Commons (CC BY 4.0) Erythranthe cardinalis (long
An arching, thorny fuchsia-flowered gooseberry branch hung with crimson, fuchsia-like flowers. Photo: John Rusk / Wikimedia Commons (CC BY 2.0) Ribes speciosum, commonly called fuchsia-flowered
A mature blue palo verde in Organ Pipe Cactus Wilderness, Arizona, showing its smooth blue-green trunk and open, wash-hugging canopy. Photo: Krzysztof Ziarnek, Kenraiz /
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