Orobanche cooperi subsp. latiloba

(Munz) L. T. Collins
Phytoneuron 2015-48: 15. 2015.
Illustrated
Basionym: Orobanche ludoviciana var. latiloba Munz Bull. Torrey Bot. Club 57: 621, plate 39, fig. 18. 1931
Synonyms: Aphyllon cooperi subsp. latilobum (Munz) A. C. Schneider O. multicaulis Brandegee
Treatment appears in FNA Volume 17. Treatment on page 485. Mentioned on page 479, 484.

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.

Distribution

Ariz., Calif., Nev., Mexico (Baja California, Baja California Sur, Sonora).

Discussion

Selected References

None.

Lower Taxa

None.

L. Turner Collins +, Alison E. L. Colwell +  and George Yatskievych +
(Munz) L. T. Collins +
Orobanche ludoviciana var. latiloba +
Ariz. +, Calif. +, Nev. +, Mexico (Baja California +, Baja California Sur +  and Sonora). +
-50–1000 m. +
Warm sandy deserts and dry washes of Sonoran Desert. +
Flowering Jan–Apr. +
Phytoneuron +
Illustrated +
Aphyllon cooperi subsp. latilobum +  and O. multicaulis +
Orobanche cooperi subsp. latiloba +
Orobanche cooperi +
subspecies +