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Vantage to Pomona Heights Chapter 3
<br />230 kV Transmission Line Project FEIS Affected Environment
<br />PAGE 3-17
<br />COMMON NAME SCIENTIFIC NAME STATUS1 RANGE GLOBAL/STATE RARITY OF
<br />SPECIES2
<br />REGIONAL
<br />INFORMATION3
<br />PRIMARY THREATS/RESPONSE TO
<br />DISTURBANCE REQUIRED HABITAT PHENOLOGY
<br />ROUTE SEGMENT(S) LOCATED WITHIN
<br />ONE MILE OF
<br />KNOWN OCCURRENCE
<br />DOCUMENTED DURING PLANT
<br />SURVEY (ROUTE
<br />SEGMENT)
<br />Grand redstem Ammannia robusta BLM-S,
<br />WT
<br />Grand redstem is found from central
<br />western Canada down to California and
<br />from central United States to Mexico. In
<br />Washington, it is found in Benton, Grant
<br />and Franklin counties and was historically
<br />known from Klickitat and Whitman
<br />counties along the Columbia and Snake
<br />Rivers.
<br />G5/S1 Two populations
<br />occupying approximately
<br />2,299 acres are known to
<br />occur within the region.
<br />Grand redstem is vulnerable to hydrologic
<br />changes, such as flooding by hydroelectric
<br />developments and invasion by exotic
<br />species, such as purple loosestrife (Lythrum
<br />salicaria). Its habitat type was once widely
<br />distributed along the Columbia and Snake
<br />rivers, but inundation due to hydroelectric
<br />development has dramatically reduced the
<br />extent and quality of these wetlands.
<br />Moist, heavy soil around
<br />ponds, rivers, and other wet
<br />places; deep sandy loam to
<br />gravelly soils. Along the
<br />Columbia River in riparian
<br />mudflat wetlands
<br />dominated by annual
<br />species.
<br />May to July 3b -
<br />Gray cryptantha Cryptantha
<br />leucophaea
<br />SOC, BLM-
<br />S, WS
<br />Gray cryptantha is a regional endemic in
<br />the Columbia and Lower Yakima Rivers in
<br />the Western Columbia Basin. It occurs
<br />from Wenatchee, Washington to The
<br />Dalles, Oregon. In Washington, it is
<br />currently known from Benton, Franklin,
<br />Grant, Kittitas, Walla Walla, and Yakima
<br />counties and historically Douglas County.
<br />G2G3/S2S3 Thirty-three populations
<br />occupying approximately
<br />16,169 acres are known to
<br />occur within the region.
<br />Primary threats include OHV use and
<br />increased weed invasions. Changes in sand
<br />deposition and agricultural conversion also
<br />pose threats.
<br />Gray cryptantha restricted primarily to sand
<br />dunes that are not completely stabilized
<br />(i.e., areas where there is still some
<br />movement of sand).
<br />Dry, often sandy places;
<br />with sparse vegetation,
<br />usually on slopes but
<br />sometimes on flats; near
<br />the Columbia and lower
<br />Yakima rivers; 300-2,500
<br />feet.
<br />April to May 2d, 3a, 3b, 3c,
<br />NNR-7, NNR-8
<br />-
<br />Great Basin gilia Aliciella leptomeria WT Great Basin gilia is distributed throughout
<br />the Great Basin from California to
<br />Washington, Idaho, New Mexico, and
<br />Colorado. In Washington, the documented
<br />occurrences in Grant, Benton, and
<br />Franklin counties are several hundred
<br />miles north of previously known ranges.
<br />G5/S1 Eight populations
<br />occupying approximately
<br />1,320 acres are known to
<br />occur within the region.
<br />Several of the known populations are within
<br />portions of the Hanford Reach National
<br />Monument are open to the public and could
<br />be affected by recreational use. Great Basin
<br />gilia populations are also vulnerable to
<br />ground disturbance and weedy species.
<br />Open sandy or rocky areas;
<br />dry open places at low
<br />elevations, especially in
<br />sandy or sandy soil,
<br />gravelly bluffs and on
<br />caliche; associated with
<br />sagebrush steppe; 470-
<br />6,890 feet.
<br />Mid May to
<br />June
<br />3a, 3b, 3c, NNR-8 -
<br />Hairy bugseed Corispermum
<br />villosum
<br />WS Hairy bugseed found in Colorado,
<br />Minnesota, Missouri, Montana, Nebraska,
<br />Nevada, North Dakota, Washington,
<br />Wisconsin, Wyoming, and most Canadian
<br />provinces. In the Project study area, it is
<br />known to occur in Grant County.
<br />G4?/SU Three populations
<br />occupying approximately
<br />1,267 acres are known to
<br />occur within the region.
<br />Threats are not documented but are
<br />presumed to be similar to sensitive species
<br />in sandy habitats, including OHV use,
<br />increased weed invasions, changes in sand
<br />deposition, and agricultural conversion.
<br />Sand dunes, sandy and
<br />gravely shores, waste
<br />places; elevation not
<br />known.
<br />Late summer
<br />to fall
<br />3c -
<br />Hoover's desert-
<br />parsley
<br />Lomatium
<br />tuberosum
<br />SOC, BLM-
<br />S, WS
<br />Hoover’s desert-parsley is endemic to
<br />Washington and is known only from
<br />Yakima County and adjacent portions of
<br />Benton, Grant, and Kittitas counties.
<br />G2G3/S2S3 Twenty two populations
<br />occupying approximately
<br />13,210 acres are known to
<br />occur within the region.
<br />Primary threats include gravel extraction,
<br />road construction, military training activities,
<br />and grazing. Herbicide drift from nearby
<br />agricultural lands and noxious weed
<br />establishment may also pose threats.
<br />The environment of Hoover’s desert-parsley
<br />is quite harsh (hot, dry, and rocky), loose,
<br />and unstable. These factors tend to
<br />eliminate most of the competition from other
<br />vegetation.
<br />Loose rocky slopes and
<br />basalt drainage channels;
<br />rocky hillsides; 600-2,300
<br />feet.
<br />March to May 2d, 3b, 3c, NNR-2,
<br />NNR-3
<br />NNR-3
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