[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

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.

Flower of Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper)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.


Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper) - 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.

Pacific Popcornflower, Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper) - Pacific Popcornflower, Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper) - Pacific Popcornflower, Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper)

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.

Pacific Popcornflower, Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper)

Basal leaf rosettes of slender popcornflower as seen at Catherine Creek between Bingen and Lyle, WA........ November 29, 2016.

Pacific Popcornflower, Pacific Popcorn Flower, Slender Plagiobothrys, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper) with filaree (Erodium cicutarium)

Slender popcornflower blooming 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.

Paul Slichter