Packera tomentosa

(Michaux) C. Jeffrey

Kew Bull. 47: 101. 1992.

Common names: Woolly ragwort
Endemic
Basionym: Senecio tomentosus Michaux Fl. Bor.-Amer. 2: 119. 1803
Synonyms: Cineraria integrifolia var. minor Pursh S. alabamensis Britton ex Small
Treatment appears in FNA Volume 20. Treatment on page 601. Mentioned on page 577, 578, 579.

Perennials, 30–60+ cm; taprooted (caudices relatively thick, weakly ascending or erect), sometimes stoloniferous. Stems 1, densely lanate-tomentose proximally, floccose-tomentose to glabrescent distally. Basal leaves (and proximal cauline) petiolate; blades lanceolate to narrowly ovate or elliptic, 40–120+ × 20–50+ mm, bases tapering, sometimes oblique, margins subentire, crenate, or serrate-dentate. Cauline leaves gradually reduced (± petiolate or sessile, weakly clasping; dentate to pinnately lobed). Heads 10–30+ in open, corymbiform arrays (more in robust individuals). Peduncles bracteate, sparsely to densely tomentose. Calyculi inconspicuous. Phyllaries 13 or 21, light green, 5–8 mm, usually glabrous (sometimes hairy proximally). Ray-florets 10 or 13; corolla laminae 6–8+ mm. Disc-florets 50–60+; corolla-tubes 3.5–4 mm, limbs 3–3.5 mm. Cypselae 1–1.5 mm, hispid; pappi 5–7 mm. 2n = 46.


Phenology: Flowering (Mar–)May–early Jun.
Habitat: Open meadows, roadways, sandy or shallow soils overlying granitic outcrops
Elevation: 0–500 m

Distribution

V20-1349-distribution-map.gif

Ala., Ark., Del., Fla., Ga., La., Md., N.J., N.C., Okla., S.C., Tex., Va.

Discussion

Packera tomentosa is common throughout most of its range. The basal and proximal cauline leaves are held at about 45 degrees to the stems.

Selected References

None.

Lower Taxa

None.
... more about "Packera tomentosa"
not tailed +, rounded +  and obtuse +
papillate +
truncate-penicillate +
scarious +
usually ovate +  and lance-linear +
corymbiform +  and open +
indeterminate +  and determinate +
Debra K. Trock +
(Michaux) C. Jeffrey +
tapering +
Senecio tomentosus +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
lanceolate;narrowly ovate or elliptic +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
winged;nerved;ribbed +
inconspicuous +
Woolly ragwort +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
pale-yellow +  and deep orange-red +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Ark. +, Del. +, Fla. +, Ga. +, La. +, Md. +, N.J. +, N.C. +, Okla. +, S.C. +, Tex. +  and Va. +
0–500 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open meadows, roadways, sandy or shallow soils overlying granitic outcrops +
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 +
serrate-dentate +, crenate +  and subentire +
2-carpellate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering (Mar–)May–early Jun. +
linear +  and ensiform +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
bearing subulate enations +, hairy +  and bristly +
conic;usually flat;convex +
exalbuminous +
prostrate +  and ascending +
floccose-tomentose +  and glabrescent +
appendaged +  and truncate +
papillate +
Cineraria integrifolia var. minor +  and S. alabamensis +
Packera tomentosa +
species +
campanulate +
serrate +  and denticulate +
stoloniferous +  and taprooted +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
vine +, tree +, shrub +  and subshrub +
23 +, 22 +  and 20 +