Packera dimorphophylla var. dimorphophylla

Common names: Splitleaf groundsel
IllustratedEndemic
Synonyms: Senecio heterodoxus Greene ex Rydberg
Treatment appears in FNA Volume 20. Treatment on page 585. Mentioned on page 584.

Plants 10–30 cm. Stems 1 or 2–3, clustered, usually not branched. Basal leaves: petioles broad-winged, lengths 1–2 times blades; blades usually ovate to oblong-lanceolate, 1–4 × 1–4 cm, bases tapering. Cauline leaves clasping, auriculate.


Phenology: Flowering early Jul–mid Aug.
Habitat: Wet or drying, open, alpine and subalpine meadows, steep, wet slopes
Elevation: 2800–3800 m

Distribution

V20-1301-distribution-map.gif

Colo., Idaho, Mont., N.Mex., Utah, Wyo.

Discussion

The auriculate, clasping cauline leaves and congested heads make var. dimorphophylla easy to identify.

Selected References

None.

Lower Taxa

None.

"-2timesblades" is not declared as a valid unit of measurement for this property.

not tailed +, rounded +  and obtuse +
papillate +
truncate-penicillate +
scarious +
usually ovate +  and lance-linear +
subumbelliform +, corymbiform +  and congested +
indeterminate +  and determinate +
Debra K. Trock +
(Greene) W. A. Weber & Á. Löve +
tapering +
Senecio dimorphophyllus +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
usually ovate;oblong-lanceolate +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
winged;nerved;ribbed +
Splitleaf groundsel +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
pale-yellow +  and deep orange-red +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Colo. +, Idaho +, Mont. +, N.Mex. +, Utah +  and Wyo. +
2800–3800 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Wet or drying, open, alpine and subalpine meadows, steep, wet slopes +
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 +
crenate +  and entire +
2-carpellate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
ebracteate +  and bracteate +
Flowering early Jul–mid Aug. +
linear +  and ensiform +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
bearing subulate enations +, hairy +  and bristly +
conic;usually flat;convex +
exalbuminous +
Illustrated +  and Endemic +
prostrate +  and ascending +
2 +  and 3 +
appendaged +  and truncate +
papillate +
Senecio heterodoxus +
Packera dimorphophylla var. dimorphophylla +
Packera dimorphophylla +
variety +
campanulate +
serrate +  and denticulate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
23 +, 22 +  and 20 +