Heliopsis helianthoides
| Heliopsis helianthoides | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Heliopsis |
| Species: | H. helianthoides
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| Binomial name | |
| Heliopsis helianthoides (L.) Sweet
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| Synonyms[1] | |
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Synonymy
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Heliopsis helianthoides is a species of flowering plant in the family Asteraceae, known by the common names rough oxeye,[2] smooth oxeye[3] and false sunflower.[4] It is native to eastern and central North America from Saskatchewan east to Newfoundland and south as far as Texas, New Mexico, and Georgia.[5][6][7]
Heliopsis helianthoides is a rhizomatous herbaceous perennial growing 40–150 cm (16–59 in) tall. The toothed leaf blades are oval to triangular or lance-shaped and may be smooth or hairy or rough in texture. The flowers are produced from midsummer to early autumn (fall).[8] The inflorescence contains one to many composite flowerheads. Each head contains yellow ray florets which are generally 2–4 cm (3⁄4–1+1⁄2 in) long. At the center are many yellow to brownish disc florets. The fruit is an achene about 5 mm (0.20 in) long.[5]
In the wild, H. helianthoides may be found in wooded areas and tallgrass prairie, and sometimes along roadsides.[4]
It is a popular garden plant, and several cultivars are available with flowers of varying colors and shades. These include 'Summer Sun', 'Golden Plume', and 'Prairie Sunset'.[6] The following cultivars of H. helianthoides var. scabra ("rough")[9] have gained the Royal Horticultural Society's Award of Garden Merit:[10]
References
- ^ "Heliopsis helianthoides". The Global Compositae Checklist (GCC) – via The Plant List. Note that this website has been superseded by World Flora Online
- ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ USDA, NRCS (n.d.). "Heliopsis helianthoides". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 19 January 2016.
- ^ a b Heliopsis helianthoides. USDA NRCS Plant Guide.
- ^ a b Smith, Alan R. (2006). "Heliopsis helianthoides". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ a b Heliopsis helianthoides. Missouri Botanical Garden, Gardening help
- ^ "Heliopsis helianthoides". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
- ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
- ^ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
- ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 43. Retrieved 3 March 2018.
- ^ "Heliopsis helianthoides var. scabra 'Benzinggold'". RHS Plant Selector. Royal Horticultural Society. Retrieved 21 June 2013.
- ^ "Heliopsis helianthoides var. scabra 'Light of Loddon'". RHS Plant Selector. Royal Horticultural Society. Retrieved 21 June 2013.
- ^ "Heliopsis helianthoides var. scabra 'Spitzentänzerin'". RHS Plant Selector. Royal Horticultural Society. Retrieved 21 June 2013.
- ^ "Heliopsis helianthoides var. scabra 'Waterperry Gold'". RHS Plant Selector. Royal Horticultural Society. Retrieved 21 June 2013.
External links
- Heliopsis helianthoides in the CalPhotos photo database, University of California, Berkeley
- Photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri in 2005
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