Packera neomexicana var. neomexicana

Common names: New Mexico groundsel
Synonyms: Senecio appendiculatus Greenman Senecio encelia Greene Senecio eurypterus Greenman Senecio oreophilus Greenman Senecio oresbius Greenman
Treatment appears in FNA Volume 20. Treatment on page 593. Mentioned on page 594.

Annuals, biennials, or perennials, usually lanate or woolly, rarely glabrate, taprooted. Stems 1. Basal leaves: blades ovate to obovate, margins deeply dentate or dissected. Cauline leaves conspicuous. 2n = 46, 92.


Phenology: Flowering early Apr–late Jun.
Habitat: Rocky soils, oak-conifer or chaparral associations
Elevation: 1200–2400 m

Distribution

V20-1327-distribution-map.gif

Ariz., N.Mex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Sonora)

Discussion

Variety neomexicana is known from throughout Arizona and in southern and western New Mexico. Its persistent, heavy tomentum and well-developed cauline leaves make it easy to recognize. If type of Senecio thurberi A. Gray belongs within circumscription of Packera neomexicana (see T. M. Barkley 1978), a new combination in Packera will be necessary.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
papillate +
truncate-penicillate +
scarious +
usually ovate +  and lance-linear +
compact corymbiform +  and subumbelliform +
indeterminate +  and determinate +
Debra K. Trock +
(A. Gray) W. A. Weber & Á. Löve +
tapering +
Senecio neomexicanus +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
ovate;obovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
winged;nerved;ribbed +
New Mexico groundsel +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
pale-yellow +  and deep orange-red +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
glabrous +  and hirtellous +
cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, N.Mex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Sonora) +
1200–2400 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky soils, oak-conifer or chaparral associations +
discoid +  and radiate +
in compact or congested to open corymbiform cymiform or subumbelliform , , , arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate;cylindric +
sessile +  and petiolate +
cauline +  and basal +
erect;recurved +
deltate +
dentate to pinnatifid +  and entire +
dissected +  and dentate +
2-carpellate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering early Apr–late Jun. +
list +  and count +
tomentose +  and glabrescent +
linear +  and ensiform +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
bearing subulate enations +, hairy +  and bristly +
conic;usually flat;convex +
exalbuminous +
prostrate +  and ascending +
glabrescent +, arachno-tomentose +  and lanate +
appendaged +  and truncate +
papillate +
Senecio appendiculatus +, Senecio encelia +, Senecio eurypterus +, Senecio oreophilus +  and Senecio oresbius +
Packera neomexicana var. neomexicana +
Packera neomexicana +
variety +
campanulate +
serrate +  and denticulate +
perennial +, biennial +  and annual +
glabrate +, woolly +  and lanate +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
vine +, tree +, shrub +  and subshrub +
23 +, 22 +  and 20 +