[Broomrapes: The Genus Orobanche in the Columbia River Gorge of Oregon and Washington]

Gray's Broomrape

Orobanche californica ssp. grayana

Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana

Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana)

Gray's broomrape as seen in a vernal pond in the Columbia River Gorge in Klickitat County, Washington................July 27, 2011. 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: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana)- Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana)

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.

Close-up sideview of the calyx and corolla of Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana) - Close-up frontal view of the corolla lobes of Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana)

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.

Close-up sideview of the calyx and corolla of Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana) - Close-up frontal view of the corolla lobes of Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana) - Close-up sideview of the calyx and corolla of Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana)

Vernal pool habitat of Gray's Broomrape: Orobanche californica ssp. grayana (Synonyms: Orobanche californica var. grayana, Orobanche grayana, Orobanche grayana var. grayana)

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.

Paul Slichter