Helianthus maximiliani Schrader (Q2757)
Helianthus maximiliani is a taxon with the rank species within the genus Helianthus
| Language | Label | Description | Also known as |
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| English |
Helianthus maximiliani Schrader
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Helianthus maximiliani is a taxon with the rank species within the genus Helianthus
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Statements
taxon/id/Helianthus maximiliani Schrader
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Helianthus maximiliani Schrader
Helianthus maximiliani
Schrader
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-AB
1 reference
Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
CA-BC
present
introduced
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-MB
1 reference
Manitoba Checklist, 2002
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-PE
1 reference
Catling, P.M., D.S. Erskine & R.B. MacLaren. 1985. The Plants of Prince Edward Island with new records, nomenclatural changes, and corrections and deletions. Agriculture Canada, Research Branch, Ottawa. Publication 1798. 272 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-SK
1 reference
Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
CA-AB
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CA-BC
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CA-MB
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CA-ON
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CA-QC
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CA-SK
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US-AL
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US-AR
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US-CA
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US-CO
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US-CT
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US-DE
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US-DC
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US-ID
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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-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-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-SC
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US-SD
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US-TN
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US-TX
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US-UT
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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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US-WY
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Stems erect, 5–30 dm, scabrous to scabro-hispidulous.
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blades (light green to gray-green, 1-nerved, conduplicate) lanceolate, 10–30 × 2–5.5 cm, bases cuneate, margins usually entire, sometimes serrulate, abaxial faces scabrous to scabro-hispid, glanddotted.
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Heads (1–) 3–15 (often in racemiform to spiciform arrays).
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Peduncles 1–11 cm.
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Involucres hemispheric, 13–28 mm diam.
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Phyllaries 30–40, lanceolate, 14–20 × 2–3 mm, (margins ciliate) apices acute to attenuate, abaxial faces canescent, glanddotted.
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Paleae 7–11 mm, entire or 3-toothed (apices greenish, mucronate, hairy).
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Ray-florets 10–25;
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laminae (15–) 25–40 mm.
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Disc-florets 75+;
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corollas 5–7 mm, lobes yellow;
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anthers dark-brown or black;
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appendages usually yellow, sometimes partly dark.
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Cypselae 3–4 mm, glabrate;
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pappi of 2 aristate scales 3–4.1 mm. 2n = 34.
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