Edgewood Checkerbloom, Marsh Hollyhock, Oregon Checker-mallow
Sidalcea oregana ssp. spicata
Synonyms: Sidalcea spicata var. spicata, Sidalcea oregana var. spicata, Sidalcea spicata var. tonsa
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Late-blooming Edgewood checkerbloom observed in moist meadows along the Pacific Crest Trail between Mount Ashland and Grouse Gap, Rogue River-Siskiyou National Forest.......October 15, 2019. Note the numerous long, stiff hairs on the outer surfaces of the calyces which identify this subspecies.
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Edgewood checkerbloom as seen in meadows around Hot Springs Campground, Hart Mountain National Antelope Refuge.........June 11, 2016. Note the simple hairs on the lower stem (photo at right) which help identify this subspecies.
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Edgewood checkerbloom as seen in moist meadows near the junction of Forest Roads 42 and 4240, Ochoco National Forest.........June 21, 2017. Note the simple hairs on the lower stem (photo at lower right) which help identify this subspecies.
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The photo at left shows a close-up of the inflorescence
of Oregon checker-mallow. This appears to be variety spicata. Note the
bristly appearance to the calyx. This photograph was taken at
Cottonwood Meadows in the Fremont-Winema NF...........July 18, 1998. The photo at right shows Oregon checker-mallow in moist meadows at Mud Creek Campground, Fremont-Winema National Forest......June 30, 2019.
The photo above shows a close-up of the simple,
spreading hairs on the lower section of the stem. Photographed at
Cottonwood Meadows in the Fremont NF...........July 18, 1998.
A leaf of Oregon checker-mallow as seen
at
Cottonwood Meadows in the Fremont NF...........July 18, 1998.
Paul Slichter