Packera neomexicana var. mutabilis

(Greene) W. A. Weber & Á. Löve

Phytologia 49: 47. 1981.

Endemic
Basionym: Senecio mutabilis Greene Pittonia 4: 113. 1900
Synonyms: Senecio metcalfei Greene ex Wooton & Standley Senecio neomexicanus var. mutabilis (Greene) T. M. Barkley Senecio neomexicanus var. metcalfei (Greene ex Wooton & Standley) T. M. Barkley
Treatment appears in FNA Volume 20. Treatment on page 593. Mentioned on page 602.

Perennials, loosely tomentose or glabrate, taprooted (caudices branched or weakly spreading). Stems 1 or 2–3. Basal leaves: blades narrow, bases tapering, margins subentire or irregularly dentate. Cauline leaves conspicuous (abruptly reduced). 2n = 46, 92.


Phenology: Flowering late Apr–mid Jul.
Habitat: Rocky, well-drained soils, meadows, coniferous woodlands
Elevation: 1800–3000 m

Distribution

V20-1326-distribution-map.gif

Ariz., Colo., N.Mex., Utah.

Discussion

Variety mutabilis is abundant throughout the Colorado Plateau. It may hybridize with P. tridenticulata, P. streptanthifolia, and P. fendleri. T. M. Barkley (1968, 1980) recognized P. neomexicana var. metcalfei, separating the two on degree and location of dentations on the leaf margins and indicating that var. metcalfei was distributed along the Mogollon rim and var. mutabilis was from north of the Mogollon rim.

Selected References

None.

Lower Taxa

None.
Debra K. Trock +
(Greene) W. A. Weber & Á. Löve +
Senecio mutabilis +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1800–3000 m +
Rocky, well-drained soils, meadows, coniferous woodlands +
Flowering late Apr–mid Jul. +
Senecio metcalfei +, Senecio neomexicanus var. mutabilis +  and Senecio neomexicanus var. metcalfei +
Packera neomexicana var. mutabilis +
Packera neomexicana +
variety +