Rydberg’s penstemon flowering beside the route to Marie Lakes in California’s Sierra Nevada. Photo: Dcrjsr — Wikimedia Commons, CC BY 3.0. Rydberg’s penstemon is the
Woolly sunflower flowering at Rowena Crest, Oregon, with yellow heads above silver-gray foliage. Photo: Chris Light — Wikimedia Commons, CC BY-SA 4.0. Woolly sunflower, also
Snow buckwheat in a dry East Wenatchee, Washington landscape, showing the branching white flowering canopy. Photo: Thayne Tuason — Wikimedia Commons, CC BY-SA 4.0. Snow
Cut-leaf daisy flowering on gravelly ground in Idaho, showing its low cushion and separate flower stalks. Photo: Matt Lavin from Bozeman, Montana, USA — Wikimedia
Silver foliage and upright stems of Louisiana sage in the Halle botanical garden. Photo: Krzysztof Ziarnek, Kenraiz — Wikimedia Commons, CC BY-SA 4.0. Louisiana sage
Squarestem spikerush in cultivation at Lilypons Water Gardens, Maryland. Photo: Photo by David J. Stang — Wikimedia Commons, CC BY-SA 4.0. Squarestem spikerush is a
Three-way sedge flowering in a natural wetland, with narrow leaves and slender side clusters. Photo: Ayotte, Gilles, 1948- — Wikimedia Commons, CC BY-SA 4.0. Three-way
Desert needlegrass forms a dense bunch with pale, upright seed stalks near Topaz Lake. Photo: Matt Lavin from Bozeman, Montana, USA — Wikimedia Commons, CC
Scarlet tubular flower of pine-leaf penstemon. Photo: Patrick Alexander https://www.inaturalist.org/people/aspidoscelis — Wikimedia Commons, CC0. Pine-leaf penstemon is a small Southwestern shrub-like perennial with an outsized
Shrubby penstemon flowering near Blewett Pass, Washington. Photo: Thayne Tuason — Wikimedia Commons, CC BY-SA 4.0. Shrubby penstemon combines the floral impact of a penstemon
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