Heliopsis helianthoides

Heliopsis helianthoides
Conservation status

Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Heliopsis
Species: H. helianthoides
Binomial name
Heliopsis helianthoides
(L.) Sweet

Heliopsis helianthoides is a species of flowering plant in the family Asteraceae, known by the common names smooth oxeye and false sunflower.[1] It is native to eastern North America, including eastern Canada and the eastern United States.[2][3]

This species 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).[4] The inflorescence contains one to many composite flowerheads. Each head contains yellow ray florets which are generally 2–4 cm long. At the center are many yellow to brownish disc florets. The fruit is an achene about 5 mm long.[2]

In the wild this plant may be found in wooded areas and tallgrass prairie, and sometimes along roadsides.[1]

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'.[3] The following cultivars of H. helianthoides var. scabra ("rough")[5] have gained the Royal Horticultural Society's Award of Garden Merit:-

Wikimedia Commons has media related to Heliopsis helianthoides.

References

  1. 1.0 1.1 Heliopsis helianthoides. USDA NRCS Plant Guide.
  2. 2.0 2.1 Heliopsis helianthoides. Flora of North America.
  3. 3.0 3.1 Heliopsis helianthoides. Missouri Botanical Garden.
  4. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  5. Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  6. "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Benzinggold'". Retrieved 21 June 2013.
  7. "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Light of Loddon'". Retrieved 21 June 2013.
  8. "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Spitzentänzerin'". Retrieved 21 June 2013.
  9. "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Waterperry Gold'". Retrieved 21 June 2013.

External links