Orobanche cooperi subsp. latiloba
Plants usually branched, base usually enlarged. Leaves rarely imbricate proximally; blade broadly lanceolate, 8–12 mm, apex obtuse. Inflorescences: bracts 7–11 mm, apex acuminate or obtuse, sometimes slightly reflexed. Corollas 22–32 mm; palatal folds densely villous; abaxial lip 5–9 mm, adaxial lip erect or reflexed, 6–10 mm, lobes with apiculate tooth. Anthers pubescent, stalked glands present on dorsal surface, rarely absent. Stigmas bilaminar-rhomboid, sometimes peltate or crateriform. 2n = 48, 96.
Phenology: Flowering Jan–Apr.
Habitat: Warm sandy deserts and dry washes of Sonoran Desert.
Elevation: -50–1000 m.
Ariz., Calif., Nev., Mexico (Baja California, Baja California Sur, Sonora).