[Popcornflowers: The Genus Plagiobothrys in the Columbia
River Gorge of Oregon and Washington]
Pacific Popcornflower, Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower
Plagiobothrys tenellus
Synonym: Plagiobothrys asper
Slender popcornflower as seen along the Goldendale-Glenwood Highway in the upper Klickitat Canyon.........April 13, 2007.
Close-up of a flower and subtending bract of slender popcornflower as seen along the Goldendale-Glenwood Highway in the upper Klickitat Canyon.........April 13, 2007.
Characteristics:
Key identifying characteristics:
Short stature (5-25 cm tall), plants with a basal cluster of leaves and few
stem leaves, smaller white flowers with petals from 2-4
mm wide.
Slender popcorn flower is small taprooted annual
with one or several ascending to erect stems rising from 5-25 cm high. If several
stems are present, the branching occurs near the base. The herbage is somewhat
pubescent with coarse or stiff hairs. The leaves are all alternate and mostly
clustered in a basal tuft which persists through bloom. The basal leaves are
sessile and range from 0.7-3 cm long and 2-8 mm wide. The reduced stem leaves
are few and scattered along the stem. The stem leaves are lanceolate in shape.
The racemes are single or sometimes paired. The
are tightly coiled at first but elongate with age. The flowers are white with
small flowers. The petals are 2-4 mm wide. The calyx is 3-5 mm long at maturity.
Habitat:
Slender popcorn flower is common in dry, open fields
and slopes at low elevations.
Range:
Slender popcorn flower may be found from southern
British Columbia south to the east of the Cascades of Washington and Oregon
to Baja California. It maybe found eastward to western Idaho, Nevada and Utah.
In the Columbia River Gorge, it may be found between
the elevations of 100'-3000' from the White Salmon River east to Brigs Junction,
OR and hence east.
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Slender popcornflower as seen along the Goldendale-Glenwood Highway in the upper Klickitat Canyon.........April 13, 2007.
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Slender popcornflower beginning to bloom (left and center) on road cuts about 100 meters uphill from the Crawford Oaks trailhead, Columbia Hills State Park..........March 3, 2015. The photo at right shows slender popcornflower in bloom along Minor Creek in the Catherine Creek area.........March 11, 2016.
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Basal leaf rosettes of slender popcornflower as seen at left at Catherine Creek between Bingen and Lyle, WA........ November 29, 2016. The photo at right shows the basal leaf rosettes of slender popcornflower as seen along the lower Deschutes River.......January 4, 2019.
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Slender popcornflower blooming at left enmasse with several filarees (Erodium cicutarium) on steep slopes along the Weldon Wagon Road about a mile and one-half east of Husum, WA.......April 19, 2018. The photo at right shows slender popcornflower in bloom on open slopes above the Crawford Oaks Trailhead, Columbia Hills Historical State Park......March 24, 2022.
Paul Slichter