Difference between revisions of "Packera subnuda"
Sida 18: 635. 1999.
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|common_names=Cleftleaf groundsel | |common_names=Cleftleaf groundsel | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Senecio subnudus | |name=Senecio subnudus | ||
|authority=de Candolle | |authority=de Candolle | ||
| + | |publication_title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
| + | |publication_place=6: 428. 1838, | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication year=1999 | |publication year=1999 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_1344.xml |
|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Packera | |genus=Packera | ||
Revision as of 18:41, 24 September 2019
Perennials, 10–30+ cm; fibrous-rooted and/or rhizomatous (bases relatively slender, horizontal to suberect). Stems usually 1, rarely 2–3, loosely clustered, glabrous. Basal leaves petiolate; blades ovate, obovate, or elliptic, 20–40+ × 10–30+ mm, bases tapering to contracted, margins subentire to crenate-dentate. Cauline leaves abruptly reduced (sessile, often weakly clasping, dentate to subentire; distals sessile, lanceolate, weakly clasping, entire or dentate). Heads 1(–5; sometimes subtended by 2 relatively large bractlets). Peduncles sparsely bracteate or ebracteate, glabrous. Calyculi (bractlets frequently cyanic). Phyllaries (13–)21, green (tips sometimes cyanic), 5–8+ mm, glabrous. Ray florets 13; corolla laminae 7–12+ mm. Disc florets 40–55+; corolla tubes 2.5–3.5 mm, limbs 2.5–3.5 mm. Cypselae 1.5–2.5 mm, glabrous; pappi 4–6 mm. 2n = 46, 90.
Distribution
nw North America.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Heads (1–)2–3; phyllaries reddish or cyanic, hairy (hairs reddish, multicellular) | Packera subnuda var. moresbiensis |
| 1 | Heads 1(–3); phyllaries green (tips sometimes red), glabrous | Packera subnuda var. subnuda |