Helianthus grosseserratus M. Martens (Q2755)
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Helianthus grosseserratus is a taxon with the rank species within the genus Helianthus
| Language | Label | Description | Also known as |
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| English |
Helianthus grosseserratus M. Martens
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Helianthus grosseserratus is a taxon with the rank species within the genus Helianthus
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Statements
taxon/id/Helianthus grosseserratus M. Martens
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Helianthus grosseserratus M. Martens
Helianthus grosseserratus
M. Martens
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
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CA-BC
1 reference
Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
CA-ON
present
introduced
1 reference
Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
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-ON
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CA-QC
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US-AR
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US-CT
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US-DE
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US-DC
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US-GA
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US-IL
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US-IN
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US-IA
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US-KS
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US-KY
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US-LA
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US-ME
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US-MD
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US-MA
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US-MI
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US-MN
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US-MS
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US-MO
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US-NE
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US-NH
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US-NJ
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US-NY
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US-NC
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US-ND
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US-OH
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US-OK
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US-PA
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US-SD
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US-TN
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US-TX
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US-VA
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US-WA
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US-WV
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US-WI
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10–300+ m
10 meter
300 meter
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Stems erect, glabrous proximally, distally glabrate, scabrellous, or strigillose (glaucous).
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opposite (proximal) or alternate;
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petioles (1–) 2–5 cm;
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blades (light to dark green, 3-nerved distal to bases) lanceolate to lanceovate, 10–32 × (1.2–) 4–9 cm, bases cuneate, margins usually coarsely to shallowly serrate, rarely subentire (flat), abaxial faces puberulent to tomentulose, glanddotted.
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Peduncles 0.3–10 cm.
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Involucres broadly hemispheric, 15–25 mm diam.
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Phyllaries 25–30 (loose, spreading), lance-linear, 10–14 × 1.5–2.5 mm (subequal), (margins ± ciliate) apices attenuate, abaxial faces glabrous or puberulent, not glanddotted.
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Paleae 7–8 mm, entire or 3-toothed (apices acuminate, ± hairy).
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Ray-florets 14–20;
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laminae 23–40 mm.
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Disc-florets 100+;
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corollas 5–6 mm, lobes yellow;
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anthers dark-brown to black, appendages yellow.
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Cypselae 3–4 mm, glabrate;
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pappi of 2 aristate scales 1.9–2.5 mm. 2n = 34.
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