Orobanche cooperi

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Orobanchaceae
Tribus: Orobancheae
Genus: Orobanche
Species: Orobanche cooperi
Name

Orobanche cooperi (A.Gray) A. Heller
References

Heller, A.A. 1898. Catalogue of North American Plants North of Mexico, exclusive of the lower cryptogams. BHL Reference page. : 7.
USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. [1]

Vernacular names
English: desert broomrape, burroweed strangler

Orobanche cooperi is a species of broomrape known by the common name Cooper's broomrape[1] desert broomrape,[1] spike broomrape,[1] and burroweed strangler. It is native to the desert regions of the southwestern United States and northern Mexico, where it is a parasite growing attached to the roots of other plants, usually members of the Asteraceae, such as Artemisia, Hymenoclea, Ambrosia and Encelia. Although not usually weedy, it has been found infesting agricultural cropland, including tomato fields in inland California.[2] This plant arises from a thick root and a scaly, twisted stem base, and produces a thick, clumpy stem up to 40 centimeters tall. As a parasite taking its nutrients from a host plant, it lacks leaves and chlorophyll. It is dark purple in color and coated with glandular hairs. The inflorescence is an elongated array of several flowers. Each flower is tubular, purple and hairy, and up to about 3 centimeters long.
References

"Orobanche cooperi". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 25 January 2018.
California Department of Food and Agriculture: EncycloWeedia