Gray's broomrape as seen in a vernal pond in the Columbia River Gorge in Klickitat County, Washington..........July 27, 2011. Associated plants
Spiraea douglasii var. menziesii,
Symphyotrichum spathulatum,
Ventenata dubia and other grasses. At this particular site, western mountain aster (
Symphyotrichum spathulatum var.
spathulatum) appears to be this species' host plants. The center image also shows coyote thistle
(Eryngium petiolatum) which is threatened in Washington state.
Gray's broomrape as seen in a vernal pond in the Columbia River Gorge in Klickitat County, Washington...........July 27, 2011. Note the long, narrow calyx lobes and the long pedicel (up to 3 cm) subtending the flowers.
Associated plants include
Beckmannia syzigachne, Grindelia columbiana,
Spiraea douglasii var. menziesii,
Symphyotrichum spathulatum,
Ventenata dubia and other grasses. The
Grindelia and
Symphyotrichum appear to be this species' host plants.
Gray's broomrape as seen in a vernal pond in the Columbia River Gorge in Klickitat County, Washington............July 27, 2011. Note the long, narrow calyx lobes and the long pedicel (up to 3 cm) subtending the flowers in the photo at left.
Gray's broomrape as seen in a vernal pond in the Columbia River Gorge in Klickitat County, Washington..........August 8, 2011. The vernal pond is pictured in the lower photo.