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Orobanche cooperi (Desert broomrape)
Marr, Minnette

Orobanche cooperi

Orobanche cooperi (A. Gray) A. Heller

Desert Broomrape, Spike Broomrape

Orobanchaceae (Broom-Rape Family)

Synonym(s): Aphyllon cooperi, Myzorrhiza cooperi, Orobanche cooperi ssp. cooperi, Orobanche cooperi ssp. latiloba, Orobanche ludoviciana var. cooperi, Orobanche ludoviciana var. latiloba

USDA Symbol: ORCO4

USDA Native Status: L48 (N)

A fleshy plant with dense spikes, singly or in clusters, of bilaterally symmetrical, dark purple flowers.

The proper classification of this plant remains unclear. It is often considered a subspecies of Prairie Broomrape (Orobanche ludoviciana), a species widespread in the West, and its distinction from Spike Broomrape (O. multiflora) is also debated. All Orobanche species are parasites on the roots of other plants; this species is particularly common on White Bur Sage (Ambrosia dumosa), a shrubby member of the aster family (Asteraceae). It has also become a parasite on tomato crops in southeastern Californias Coachella Valley.


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb

Bloom Information

Bloom Color: White , Pink
Bloom Time: Jan , Feb , Mar , Apr , May


USA: AZ , CA , NM , NV , TX , UT
Native Distribution: Southwestern Utah south to southeastern California, southern Arizona,northwestern New Mexico, Trans-Pecos Texas and northwestern Mexico.
Native Habitat: Sandy, desert soil.

Additional resources

USDA: Find Orobanche cooperi in USDA Plants
FNA: Find Orobanche cooperi in the Flora of North America (if available)
Google: Search Google for Orobanche cooperi


Record Modified: 2018-10-15
Research By: TWC Staff

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