Sickletop Lousewort, White Sickletop Lousewort
Pedicularis racemosa var. alba
Synonym: Pedicularis racemosa ssp. alba
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A white flowered form of sickletop lousewort in bloom along the Pacific Crest Trail #2000 between Killen Creek Meadows and the Killen Creek Trail #113, Mt. Adams Wilderness......August 28, 2020.

The photo above shows a close-up frontal view of the flower of sickletop lousewort as seen in Bird Creek Meadows along the Round the Mountain Trail #9, Mt. Adams.........July 19, 2007. Note the 3 broad lobes of the lower lip, while the upper two petals are fused to form a unit not unlike an elephant's trunk.

The photo above shows a close-up sideview of the calyx of sickletop lousewort as seen in Bird Creek Meadows along the Round the Mountain Trail #9, Mt. Adams........July 19, 2007.
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Sickletop lousewort as seen along the Round the Mountain Trail #9 east of the South Climb Trail, Mt. Adams Wilderness.........August 13, 2017.

The photo above shows sickletop lousewort
as seen in Bird Creek Meadows along the Round the Mountain Trail
#9, Mt. Adams.........July 19, 2007.

The photo above shows a close-up view of the toothed leaf and
flower of sickletop lousewort, photographed in meadows immediately north of
Hellroaring Creek adjacent to the Island Springs Trail #66 on Yakama Nation
lands at the southeastern corner of Mt. Adams.........July 17, 2005. The flower of this variety is pink to purplish with the strongly curved, narrow
upper lip often touching the twisted, wide lower lip as seen in the photo. The
similar similar var. racemosa has pink to purplish flowers rather than the
white flowers of this variety.

The photo above shows a close-up view of the toothed leaf of
sickletop lousewort, photographed in meadows immediately north of Hellroaring
Creek adjacent to the Island Springs Trail #66 on Yakama Nation lands at the
southeastern corner of Mt. Adams..........July 17, 2005. This the only
species of lousewort in the Cascades to have simple leaves. The blades are roughly
lanceolate in outline.

The photo above shows the upper stem, simple, serrate leaves
and pinkish flowers of sickletop lousewort, photographed in meadows immediately
north of Hellroaring Creek adjacent to the Island Springs Trail #66 on Yakama
Nation lands at the southeastern corner of Mt. Adams........July 17,
2005. Note that the flowers arise singly from the upper leaf axils.

The photo above shows a cluster of sickletop lousewort as seen
along the Shorthorn Trail #16 in the Mt.
Adams Wilderness..........August 24, 2008.
Paul Slichter