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woolly ragwort

Oak Creek ragwort

Habit Perennials, 30–60+ cm; taprooted (caudices relatively thick, weakly ascending or erect), sometimes stoloniferous. Perennials, 60–100+ cm; taprooted (caudices subligneous, ascending to erect).
Stems

1, densely lanate-tomentose proximally, floccose-tomentose to glabrescent distally.

1 or 2–4, clustered (proximally deeply purple-tinged, distally lightly tinged), glabrous or tomentose at bases and in leaf axils.

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.

(and proximal cauline) petiolate;

blades obovate or lyrate (pinnately lobed, lateral lobes 2–6+ pairs, their bases petioluliform, terminal lobes larger than laterals, midribs narrowly winged), 60–160+ × 20–40+ mm, bases wide, ultimate margins sharply dentate, crenate-dentate, or irregularly incised.

Cauline leaves

gradually reduced (± petiolate or sessile, weakly clasping; dentate to pinnately lobed).

gradually reduced (petiolate or sessile; shallowly lobed, midribs ± winged, distals bractlike, dentate to incised).

Peduncles

bracteate, sparsely to densely tomentose.

ebracteate, glabrous.

Ray florets

10 or 13;

corolla laminae 6–8+ mm.

(8–)13;

corolla laminae 6–10+ mm.

Disc florets

50–60+;

corolla tubes 3.5–4 mm, limbs 3–3.5 mm.

60–70+;

corolla tubes 2–3 mm, limbs 3.5–4.5 mm.

Phyllaries

13 or 21, light green, 5–8 mm, usually glabrous (sometimes hairy proximally).

(13–)21, green (tips yellow), 5–7 mm, glabrous (tips sometimes hairy).

Calyculi

inconspicuous.

inconspicuous.

Heads

10–30+ in open, corymbiform arrays (more in robust individuals).

15–40+ in open, cymiform arrays.

Cypselae

1–1.5 mm, hispid;

pappi 5–7 mm.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

2n

= 46.

= 92.

Packera tomentosa

Packera quercetorum

Phenology Flowering (Mar–)May–early Jun. Flowering mid Apr–early Jun.
Habitat Open meadows, roadways, sandy or shallow soils overlying granitic outcrops Rocky soils, open areas, scrub-oak and pinyon-pine forests, chaparral
Elevation 0–500 m (0–1600 ft) 800–2200 m (2600–7200 ft)
Distribution
from FNA
AL; AR; DE; FL; GA; LA; MD; NC; NJ; OK; SC; TX; VA
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from FNA
AZ; NM
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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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Packera quercetorum is found only infrequently and in relatively small populations in central and southern Arizona and west-central New Mexico. The plants are robust and have probable affinities to P. multilobata. The plants have a bluish tinge when freshly collected and are distinctive in the field.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 601. FNA vol. 20, p. 598.
Parent taxa Asteraceae > tribe Senecioneae > Packera Asteraceae > tribe Senecioneae > Packera
Sibling taxa
P. anonyma, P. antennariifolia, P. aurea, P. bernardina, P. bolanderi, P. breweri, P. cana, P. cardamine, P. castoreus, P. clevelandii, P. contermina, P. crocata, P. cymbalaria, P. cynthioides, P. debilis, P. dimorphophylla, P. eurycephala, P. fendleri, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, P. ionophylla, P. layneae, P. macounii, P. malmstenii, P. millefolium, P. millelobata, P. multilobata, P. musiniensis, P. neomexicana, P. obovata, P. ogotorukensis, P. pauciflora, P. paupercula, P. plattensis, P. porteri, P. pseudaurea, P. quercetorum, P. sanguisorboides, P. schweinitziana, P. spellenbergii, P. streptanthifolia, P. subnuda, P. tampicana, P. texensis, P. tridenticulata, P. werneriifolia
P. anonyma, P. antennariifolia, P. aurea, P. bernardina, P. bolanderi, P. breweri, P. cana, P. cardamine, P. castoreus, P. clevelandii, P. contermina, P. crocata, P. cymbalaria, P. cynthioides, P. debilis, P. dimorphophylla, P. eurycephala, P. fendleri, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, P. ionophylla, P. layneae, P. macounii, P. malmstenii, P. millefolium, P. millelobata, P. multilobata, P. musiniensis, P. neomexicana, P. obovata, P. ogotorukensis, P. pauciflora, P. paupercula, P. plattensis, P. porteri, P. pseudaurea, P. sanguisorboides, P. schweinitziana, P. spellenbergii, P. streptanthifolia, P. subnuda, P. tampicana, P. texensis, P. tomentosa, P. tridenticulata, P. werneriifolia
Synonyms Senecio tomentosus, Cineraria integrifolia var. minor, S. alabamensis Senecio quercetorum, Senecio macropus
Name authority (Michaux) C. Jeffrey: Kew Bull. 47: 101. (1992) (Greene) C. Jeffrey: Kew Bull. 47: 101. (1992)
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