Difference between revisions of "Packera millefolium"

(Torrey & A. Gray) W. A. Weber & Á. Löve

Phytologia 49: 47. 1981.

Common names: Piedmont ragwort
Basionym: Senecio millefolium Torrey & A. Gray
Synonyms: Senecio memmingeri Britton ex Small
Treatment appears in FNA Volume 20. Treatment on page 591. Mentioned on page 575, 586, 592.
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|distribution=Ga.;N.C.;S.C.;Va.
 
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|discussion=<p>Of conservation concern.</p><!--
 
|discussion=<p>Of conservation concern.</p><!--
--><p>Packera millefolia is known only from granitic soils in the southern Appalachians. It is similar in overall aspect to the widespread P. anonyma; it differs by its 2–3 times pinnately dissected leaves.</p>
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--><p><i>Packera</i> millefolia is known only from granitic soils in the southern Appalachians. It is similar in overall aspect to the widespread <i>P. anonyma</i>; it differs by its 2–3 times pinnately dissected leaves.</p>
 
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|publication year=1981
 
|publication year=1981
 
|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V20_1321.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_1321.xml
 
|tribe=Asteraceae tribe Senecioneae
 
|tribe=Asteraceae tribe Senecioneae
 
|genus=Packera
 
|genus=Packera

Revision as of 16:19, 18 September 2019

Perennials, 25–60+ cm; fibrous-rooted (caudices branched). Stems 1 or 2–3, clustered, glabrous or leaf axils sparsely hairy. Basal leaves (and proximal cauline) petiolate; blades narrowly ovate to ovate (2–3 times pinnately dissected, ultimate lobes mostly linear to filiform), 50–80 × 30–50 mm, bases ± truncate or auriculate, ultimate margins entire or remotely dentate. Cauline leaves gradually reduced (petiolate or sessile, similar to basals). Heads 10–30+ in open, corymbiform arrays. Peduncles bracteate or ebracteate, glabrous. Calyculi 0. Phyllaries (13–)21, green, 4–6 mm, glabrous (tips sometimes hair-tufted). Ray florets 8–10(–13); corolla laminae 8–12 mm. Disc florets 35–50+; corolla tubes 2–3 mm, limbs 1.5–2.5 mm. Cypselae 0.75–1.5 mm, hairy on ribs; pappi 3–4 mm.


Phenology: Flowering early May–mid Jun.
Habitat: Open areas along streams, rock outcrops in thin, granitic-derived soils
Elevation: 400–900 m

Discussion

Of conservation concern.

Packera millefolia is known only from granitic soils in the southern Appalachians. It is similar in overall aspect to the widespread P. anonyma; it differs by its 2–3 times pinnately dissected leaves.

Selected References

None.

Lower Taxa

None.
... more about "Packera millefolium"
Debra K. Trock +
(Torrey & A. Gray) W. A. Weber & Á. Löve +
Senecio millefolium +
Piedmont ragwort +
Ga. +, N.C. +, S.C. +  and Va. +
400–900 m +
Open areas along streams, rock outcrops in thin, granitic-derived soils +
Flowering early May–mid Jun. +
Senecio memmingeri +
Packera millefolium +
species +