[Loosestrifes : The Genus Lysimachia in the Columbia River
Gorge of Oregon and Washington]
Fringed Loosestrife, Fringed Yellow-loosestrife
Lysimachia ciliata
Synonyms: Lysimachia greeneana, Lysimachia longipedicellata, Lysimachia membrenacea, Nummularia ciliata, Steironema ciliata, Steironema ciliatum, Steironema longipedicellatum, Steironema membranaceum, Steironema pumilum
Close-up of the flower of fringed loosestrife as seen near the high water mark on the shoreline of Mirror Lake at Rooster Rock State Park in the western Columbia River Gorge..........August 19, 2009.
Photo
at right of fringed loosestrife from Dalton Point, west of Multnomah Falls, Columbia
River Gorge........August 1990.
Characteristics:
Fringed loosestrife is an erect plant with stems rising from
30-120 cm in height from creeping rhizomes. The stem leaves are ovate to broadly
lanceolate with rounded to hear-shaped bases, the blades 5-15 cm long and 3-6
cm wide. The petioles are 5-20 mm long. The leaf venation is simple pinnate.
The flowers arise from the upper leaf axils via slender, arched
pedicels. The 5 sepals are 5-7 mm long and lanceolate-acuminate in shape. The
yellowish petals are obovate in shape and about 1 cm long. 5 stamens are present
with the anthers about 3 mm long.
Habitat:
Fringed loosestrife may be found in damp meadows, and along
the shores of ponds, lakes or streams and rivers.
Range:
Fringed loosestrife may be found over much of temperate North
America. It may be found from British Columbia south along the east side of
the Cascades to Oregon, where it is found westward to Multnomah County, OR.
It may be found eastward through eastern Washington and northeastern Oregon
through Idaho and Montana, and further east to Nova Scotia. It may also be found
south to New Mexico.
In the Columbia River Gorge, it may be found from the western
end of the gorge to about Bingen, WA, and is found between the elevations of
0'-1800'.
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Close-ups of the flowers of fringed loosestrife as seen near the high water mark on the shoreline of Mirror Lake at Rooster Rock State Park in the western Columbia River Gorge..........August 19, 2009.
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Close-ups of fringed loosestrife as seen near the high water mark on the shoreline of Mirror Lake at Rooster Rock State Park in the western Columbia River Gorge.........August 19, 2009.
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Close-ups of the developing fruits, flower and upper stem leaves of fringed loosestrife as seen near the high water mark on the shoreline of Mirror Lake at Rooster Rock State Park in the western Columbia River Gorge..........August 19, 2009.
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Fringed loosestrife as seen along the upper shoreline of Mirror Lake at Rooster Rock State Park, western Columbia River Gorge.........October 8, 2012.
Paul Slichter