Helenium flexuosum Rafinesque (Q2706)
Helenium flexuosum is a taxon with the rank species within the genus Helenium
| Language | Label | Description | Also known as |
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| English |
Helenium flexuosum Rafinesque
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Helenium flexuosum is a taxon with the rank species within the genus Helenium
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Statements
taxon/id/Helenium flexuosum Rafinesque
0 references
Helenium flexuosum Rafinesque
Helenium flexuosum
Rafinesque
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
accepted
1 reference
CA-ON
present
introduced
1 reference
Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/
CA-QC
present
introduced
1 reference
Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-NS
present
introduced
1 reference
Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
CA-NS
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CA-ON
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CA-QC
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US-AL
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US-AR
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US-FL
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US-GA
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US-IL
1 reference
US-IN
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US-KY
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US-LA
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US-MD
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US-MA
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US-MI
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US-MS
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US-MO
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US-NJ
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US-NC
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US-OH
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US-OK
1 reference
US-PA
1 reference
US-SC
1 reference
US-TN
1 reference
US-TX
1 reference
US-VA
1 reference
US-WV
1 reference
US-WI
1 reference
10–900 m
10 meter
900 meter
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Stems usually 1, usually branched distally, strongly winged, glabrous or sparsely hairy proximally, sparsely to moderately hairy distally.
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Leaves glabrous or sparsely to moderately hairy;
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basal blades oblanceolate to obovate or spatulate, entire or serrate;
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distal blades lanceolate to lance-linear, entire.
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Heads (1–) 5–50 (–80+) per plant, in paniculiform arrays.
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Peduncles 3–10 cm, sparsely to moderately hairy.
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Involucres globoid to usually ovoid, 8–17 × 9–17 mm.
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Phyllaries (connate proximally) moderately to densely hairy.
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Ray-florets usually 8–13, neuter, sometimes 0;
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corollas yellow to reddish-brown to red to purple, 10–20 × 5–10 mm.
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Disc-florets 250–500 (–700+);
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corollas yellow proximally and purple distally or purple throughout, 2.3–3.7 mm, lobes 4 (–5).
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Cypselae 1–1.2 mm, moderately hairy;
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pappi of 5–6 entire, aristate scales 0.6–1 (–1.7) mm.
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sparsely hairy proximally
sparsely moderately hairy
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glabrous or
sparsely moderately hairy
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oblanceolate
obovate or spatulate
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