Orobanche corymbosa subsp. corymbosa

IllustratedEndemic
Treatment appears in FNA Volume 17. Treatment on page 477. Mentioned on page 466.

Plants simple, sometimes branched. Inflorescences simple corymbs or short corymbose racemes. Calyces (13–)15–24 mm, equal to or shorter than corolla. Corollas rose, pink, or purple with darker veins, glandular-pubescent; anthers tomentose.


Phenology: Flowering Jun–Sep.
Habitat: Sandy soils and rocky slopes in open sagebrush communities and subalpine meadows.
Elevation: 100–3200 m.

Distribution

Ariz., Calif., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Subspecies corymbosa is most often mistaken for Orobanche californica with which it was formerly associated taxonomically. The two species are very similar morphologically; Orobanche corymbosa, with only two subspecies, has much less morphological variability. Except for a small area of sympatry in eastern California, the two species are otherwise allopatric.

Selected References

None.

Lower Taxa

None.
L. Turner Collins +, Alison E. L. Colwell +  and George Yatskievych +
(Rydberg) Ferris +
Myzorrhiza corymbosa +
Ariz. +, Calif. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
100–3200 m. +
Sandy soils and rocky slopes in open sagebrush communities and subalpine meadows. +
Flowering Jun–Sep. +
Contr. Dudley Herb. +
Illustrated +  and Endemic +
Aphyllon corymbosum +  and Orobanche californica var. corymbosa +
Orobanche corymbosa subsp. corymbosa +
Orobanche corymbosa +
subspecies +