Difference between revisions of "Packera macounii"
Phytologia 49: 47. 1981.
FNA>Volume Importer |
FNA>Volume Importer |
||
Line 8: | Line 8: | ||
}} | }} | ||
|common_names=Siskiyou Mountain ragwort | |common_names=Siskiyou Mountain ragwort | ||
− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Senecio macounii | |name=Senecio macounii | ||
|authority=Greene | |authority=Greene | ||
− | }} {{Treatment/ID/ | + | |publication_title=Pittonia |
+ | |publication_place=3: 169. 1897 | ||
+ | }} {{Treatment/ID/Basionym | ||
|name=Senecio fastigiatus | |name=Senecio fastigiatus | ||
|authority=Nuttall | |authority=Nuttall | ||
+ | |publication_title= | ||
+ | |publication_place=1841 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
Line 66: | Line 70: | ||
|publication year=1981 | |publication year=1981 | ||
|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_1319.xml |
|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Packera | |genus=Packera |
Revision as of 19:41, 24 September 2019
Perennials, 30–40+ cm; taprooted (caudices ± branched, becoming rhizomiform). Stems 1, sparsely to densely tomentose or glabrescent. Basal leaves (and proximal) petiolate; blades lanceolate to oblanceolate, 30–50+ × 10–20 mm, bases tapering, margins entire or shallowly toothed (slightly revolute). Cauline leaves gradually reduced (distal sessile, bractlike). Heads 6–15+ in corymbiform arrays. Peduncles inconspicuously bracteate or ebracteate, sparsely tomentose to glabrate. Calyculi 0 or inconspicuous. Phyllaries 13 or 21, green, 5–7+ mm, glabrous. Ray florets 8(–13); corolla laminae 8–10+ mm. Disc florets 30–40+; corolla tubes 2.5–3.5 mm, limbs 2–3 mm. Cypselae 1.5–2 mm, glabrous; pappi 4–5 mm. 2n = 46, 92.
Phenology: Flowering early May–early Jul.
Habitat: Along streams, roadsides, clearings, disturbed sites, rocky soils, coniferous woodlands
Elevation: 400–1400 m
Distribution
![V20-1319-distribution-map.gif](/w/images/6/69/V20-1319-distribution-map.gif)
B.C., Calif., Oreg., Wash.
Discussion
Packera macounii is similar in overall morphology to P. cana. Leaves of P. macounii are narrower and frequently revolute. It is often cited as being collected on serpentine soils; it is not restricted to them. Senecio fastigiatus Nuttall (1840) is a later homonym of S. fastigiatus Schweinitz ex Elliott (1823), a name of uncertain application.
Selected References
None.