Difference between revisions of "Gamochaeta simplicicaulis"

(Willdenow ex Sprengel) Cabrera

Bol. Soc. Argent. Bot. 9: 379. 1961.

Common names: Simple-stem cudweed
Basionym: Gnaphalium simplicicaule Willdenow ex Sprengel Syst. Veg. 3: 481. 1826
Synonyms: Gnaphalium purpureum var. simplicicaule (Willdenow ex Sprengel) Klatt
Treatment appears in FNA Volume 19. Treatment on page 434. Mentioned on page 432.
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|name=Gnaphalium simplicicaule
 
|name=Gnaphalium simplicicaule
 
|authority=Willdenow ex Sprengel
 
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|rank=species
 
|publication_title=Syst. Veg.
 
|publication_title=Syst. Veg.
 
|publication_place=3: 481. 1826
 
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|name=Gnaphalium purpureum var. simplicicaule
 
|name=Gnaphalium purpureum var. simplicicaule
 
|authority=(Willdenow ex Sprengel) Klatt
 
|authority=(Willdenow ex Sprengel) Klatt
 +
|rank=variety
 
}}
 
}}
 
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Gamochaeta;Gamochaeta simplicicaulis
 
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Gamochaeta;Gamochaeta simplicicaulis
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name=Gamochaeta simplicicaulis
 
name=Gamochaeta simplicicaulis
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|authority=(Willdenow ex Sprengel) Cabrera
 
|authority=(Willdenow ex Sprengel) Cabrera
 
|rank=species
 
|rank=species
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_714.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_714.xml
 
|tribe=Asteraceae tribe Gnaphalieae
 
|tribe=Asteraceae tribe Gnaphalieae
 
|genus=Gamochaeta
 
|genus=Gamochaeta

Revision as of 19:21, 16 December 2019

Annuals or biennials, (30–)50–85 cm; fibrous-rooted. Stems erect or ascending (usually 1, sometimes 2–5), densely and closely white-pannose. Leaves basal and cauline, basal usually withering before flowering, blades oblanceolate to oblanceolate-spatulate, 5–9 cm × 6–18 mm (gradually smaller distally, margins closely undulate, nearly crenulate; distal cauline linear-lanceolate to linear-oblanceolate, apices long-acute; sessile clusters of smaller leaves produced in axils of mid and distal cauline leaves), faces bicolor, abaxial closely white-pannose, adaxial glabrous (shiny). Heads in interrupted, spiciform arrays (8–)16–30 cm × 10–14 mm (pressed; sometimes with ascending, lateral branches, glomerules usually subtended by ± patent linear bracts longer than the glomerules). Involucres cylindro-campanulate, 3–3.5 mm, bases glabrous. Phyllaries in 4–6 series, outer ovate to oblong, lengths 1/3–1/2 inner, apices acute-acuminate, inner narrowly oblong, laminae brownish to tan (not purplish), apices acuminate-apiculate. Florets: bisexual (2–)3; all corollas yellowish distally. Cypselae (tan) 0.5–0.6 mm.


Phenology: Flowering (Jun–)Jul–Aug(–Oct).
Habitat: Open sites, sandy soil, roadsides, fields, open woods, dunes
Elevation: 0–10 m

Distribution

V19-714-distribution-map.gif

Ala., Fla., Ga., N.C., S.C., South America, naturalized in New Zealand, Australia, Java.

Discussion

Gamochaeta simplicicaulis was reported from North America by G. L. Nesom (1999b, 2000b) as an apparently recent adventive.

Selected References

None.

Lower Taxa

None.
... more about "Gamochaeta simplicicaulis"
Guy L. Nesom +
(Willdenow ex Sprengel) Cabrera +
Gnaphalium simplicicaule +
Simple-stem cudweed +
Ala. +, Fla. +, Ga. +, N.C. +, S.C. +, South America +, naturalized in New Zealand +, Australia +  and Java. +
0–10 m +
Open sites, sandy soil, roadsides, fields, open woods, dunes +
Flowering (Jun–)Jul–Aug(–Oct). +
Bol. Soc. Argent. Bot. +
Gnaphalium purpureum var. simplicicaule +
Gamochaeta simplicicaulis +
Gamochaeta +
species +