Difference between revisions of "Packera neomexicana"

(A. Gray) W. A. Weber & Á. Löve

Phytologia 49: 47. 1981.

Basionym: Senecio neomexicanus A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 392. 1884 (as neo-mexicanus)
Treatment appears in FNA Volume 20. Treatment on page 593. Mentioned on page 576, 578.
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|name=Senecio neomexicanus
 
|name=Senecio neomexicanus
 
|authority=A. Gray
 
|authority=A. Gray
 +
|rank=species
 
|publication_title=in A. Gray et al., Syn. Fl. N. Amer.
 
|publication_title=in A. Gray et al., Syn. Fl. N. Amer.
 
|publication_place=1(2): 392. 1884 (as neo-mexicanus)
 
|publication_place=1(2): 392. 1884 (as neo-mexicanus)
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Packera neomexicana
 
name=Packera neomexicana
|author=
 
 
|authority=(A. Gray) W. A. Weber & Á. Löve
 
|authority=(A. Gray) W. A. Weber & Á. Löve
 
|rank=species
 
|rank=species
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|publication year=1981
 
|publication year=1981
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_1325.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_1325.xml
 
|tribe=Asteraceae tribe Senecioneae
 
|tribe=Asteraceae tribe Senecioneae
 
|genus=Packera
 
|genus=Packera

Revision as of 19:25, 16 December 2019

Perennials, biennials, or annuals, 20–50+ cm; fibrous-rooted, taprooted, or ± rhizomatous (bases branched, horizontal or ascending to erect). Stems 1 or 2–5+, clustered, lanate- or arachno-tomentose or glabrescent. Basal leaves (often abaxially cyanic) petiolate (petioles hairy to glabrate); blades ovate to lanceolate or narrowly lanceolate, 20–60+ × 10–30+ mm, bases abruptly contracted to tapering, margins subentire or denticulate to subserrate (abaxial faces usually tomentose, adaxials frequently glabrate). Cauline leaves gradually or abruptly reduced (proximal petiolate, similar to basals; mids and distals sessile, lanceolate, entire). Heads 3–20+ in open or compact, corymbiform to subumbelliform arrays (subtended by smaller arrays arising from leaf axils). Peduncles conspicuously bracteate, usually hairy. Calyculi conspicuous. Phyllaries 13 or 21, green or yellowish, 4–7+ mm, tomentose to glabrescent. Ray florets (5–)8 or 13; corolla laminae 4–10 mm. Disc florets 40–60+; corolla tubes 1.5–2.5 mm, limbs 3.5–4.5 mm. Cypselae 1.5–2.5 mm, usually hirtellous on ribs, sometimes glabrous; pappi 5–6+ mm. 2n = 44, 46, 92.

Discussion

Varieties 3 (3 in the flora).

Selected References

None.

Key

1 Plants loosely tomentose or glabrate; basal leaves: blades narrowly lanceolate, margins subentire or irregularly dentate Packera neomexicana var. mutabilis
1 Plants usually densely lanate or woolly tomentose, seldom glabrate; basal leaves: blades ovate or broadly lanceolate, margins dentate to deeply dentate or dissected > 2
2 Plants taprooted; cauline leaves conspicuous Packera neomexicana var. neomexicana
2 Plants rhizomatous or fibrous-rooted; cauline leaves inconspicuous (bractlike) Packera neomexicana var. toumeyi