Difference between revisions of "Tithonia rotundifolia"

(Miller) S. F. Blake

Contr. Gray Herb. 52: 41. 1917.

Introduced
Basionym: Tagetes rotundifolia Miller Gard. Dict. ed. 8, Tagetes no. 4. 1768
Treatment appears in FNA Volume 21. Treatment on page 139.
FNA>Volume Importer
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|place=52: 41. 1917
 
|place=52: 41. 1917
 
|year=1917
 
|year=1917
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|special_status={{Treatment/ID/Special_status
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|code=I
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|label=Introduced
 
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|elevation=0–20+ m
 
|elevation=0–20+ m
 
|distribution=Fla.;La.;Mexico;West Indies;Central America.
 
|distribution=Fla.;La.;Mexico;West Indies;Central America.
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|introduced=true
 
|discussion=<p><i>Tithonia rotundifolia</i> is widely cultivated in warm climates and may persist after plantings (e.g., in Asia).</p>
 
|discussion=<p><i>Tithonia rotundifolia</i> is widely cultivated in warm climates and may persist after plantings (e.g., in Asia).</p>
 
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|publication title=Contr. Gray Herb.
 
|publication title=Contr. Gray Herb.
 
|publication year=1917
 
|publication year=1917
|special status=
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|special status=Introduced
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_337.xml
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|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_337.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae

Revision as of 21:58, 27 May 2020

Annuals, mostly 100–200(–400) cm. Leaves: petioles 3–8 cm; blades ± deltate to pentagonal, 7–38 × 7–30 cm, sometimes 3- or 5-lobed, abaxial faces glabrous or soft-pubescent. Peduncles 11–27 cm. Phyllaries 14–21 in (2–)3 series, lanceolate to linear; outer 17–30 × 4–7.5 mm, apices acute, abaxial faces usually densely puberulent; inner 16–28 × 5–8 mm, apices rounded to acute, abaxial faces usually densely puberulent. Paleae 11.5–15 × 2–3 mm, mucros 2.5–5.5 mm. Ray florets 8–13; corollas usually orange, sometimes yellow, laminae oval to oblong, 20–33 × 6–17 mm. Disc florets 60–90. Cypselae 5–7. 2n = 34.


Phenology: Flowering Nov.
Habitat: –Jan. Disturbed sites
Elevation: 0–20+ m

Distribution

V21-337-distribution-map.gif

Introduced; Fla., La., Mexico, West Indies, Central America.

Discussion

Tithonia rotundifolia is widely cultivated in warm climates and may persist after plantings (e.g., in Asia).

Selected References

None.

Lower Taxa

None.