Difference between revisions of "Pseudognaphalium stramineum"
Opera Bot. 104: 148. 1991.
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|name=Gnaphalium stramineum | |name=Gnaphalium stramineum | ||
|authority=Kunth | |authority=Kunth | ||
| + | |rank=species | ||
|publication_title=in A. von Humboldt et al., Nov. Gen. Sp. | |publication_title=in A. von Humboldt et al., Nov. Gen. Sp. | ||
|publication_place=4(fol.): 66. 1818; 4(qto.): 85. 1820 | |publication_place=4(fol.): 66. 1818; 4(qto.): 85. 1820 | ||
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|name=Gnaphalium chilense | |name=Gnaphalium chilense | ||
|authority=Sprengel | |authority=Sprengel | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Gnaphalium chilense var. confertifolium | |name=Gnaphalium chilense var. confertifolium | ||
|authority=Greene | |authority=Greene | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Gnaphalium gossypinum | |name=Gnaphalium gossypinum | ||
|authority=Rydberg | |authority=Rydberg | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Gnaphalium lagopodioides | |name=Gnaphalium lagopodioides | ||
|authority=Greene | |authority=Greene | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Gnaphalium proximum | |name=Gnaphalium proximum | ||
|authority=Rydberg | |authority=Rydberg | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Gnaphalium sulphurescens | |name=Gnaphalium sulphurescens | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Pseudognaphalium;Pseudognaphalium stramineum | |hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Pseudognaphalium;Pseudognaphalium stramineum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Pseudognaphalium stramineum | name=Pseudognaphalium stramineum | ||
| − | |||
|authority=(Kunth) Anderberg | |authority=(Kunth) Anderberg | ||
|rank=species | |rank=species | ||
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|publication year=1991 | |publication year=1991 | ||
|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/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_681.xml |
|tribe=Asteraceae tribe Gnaphalieae | |tribe=Asteraceae tribe Gnaphalieae | ||
|genus=Pseudognaphalium | |genus=Pseudognaphalium | ||
Revision as of 19:21, 16 December 2019
Annuals or biennials, 30–60(–80) cm; taprooted. Stems (1+ from base, erect to ascending) loosely tomentose, not glandular. Leaf blades (crowded, internodes usually 1–5, sometimes to 10 mm) oblong to narrowly oblanceolate or subspatulate, 2–8(–9.5) cm × 2–5(–10) mm (smaller distally, narrowly lanceolate to linear), bases subclasping, usually not decurrent, sometimes decurrent 1–2 mm, margins flat or slightly revolute, faces concolor, loosely and persistently gray-tomentose, not glandular. Heads in terminal glomerules (1–2 cm diam.). Involucres subglobose, 4–6 mm. Phyllaries in 4–5 series, whitish (often yellowish with age, hyaline, shiny), ovate to oblong-obovate, glabrous. Pistillate florets 160–200. Bisexual florets [8–]18–28. Cypselae weakly, if at all, ridged (otherwise smooth or papillate-roughened, glabrous, without papilliform hairs; pappus bristles loosely coherent basally, released in clusters or easily fragmented rings). 2n = 28.
Phenology: Flowering Mar–Oct.
Habitat: Sandy fields, streamsides, washes, swales, dunes, chaparral slopes, roadsides, fields, disturbed places, moist disturbed places
Elevation: 10–1600 m
Distribution
B.C., Ariz., Calif., Colo., Idaho, Mont., Nebr., Nev., N.Mex., N.Y., N.C., Okla., Oreg., S.C., Tex., Utah, Va., Wash., Wyo., Mexico, South America.
Discussion
Pseudognaphalium stramineum is probably native from South America to western North America; it is adventive in sandy fields on the Atlantic coastal plain, where it flowers May–Aug.
Selected References
None.