Rudbeckia laciniata

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Rudbeckia laciniata
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Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Rudbeckia
Species: R. laciniata
Binomial name
Rudbeckia laciniata
L.

Rudbeckia laciniata is a species of flowering plant in the sunflower/daisy family Asteraceae, native to eastern North America, most often found in flood plains and moist soils.[1]

Description[edit]

It is an herbaceous perennial growing up to 3 m (10 ft) tall, with slightly glaucous leaves, and composite flowers in late summer and autumn (fall). The disc flowers are green to yellowish green, while the rays are pale yellow.[2]

Names[edit]

Common names include cutleaf, cutleaf coneflower, goldenglow, green-headed coneflower, tall coneflower and thimbleweed (note that several other plant species are also known as thimbleweed).

The specific epithet laciniata refers to the pinnately divided leaves.[3]

Cultivation[edit]

R. laciniata is widely cultivated in gardens and for cut flowers. Numerous cultivars have been developed, of which 'Herbstsonne' ("Autumn sun") has gained the Royal Horticultural Society's Award of Garden Merit.[4]

Uses[edit]

Traditionally, the young leaves have been gathered from the wild and eaten in the early spring. They are greatly favored as a potherb (cooked). Though some references state the use of this plant as salad greens (raw),[5] traditional use is as cooked greens.[6][7] This is assumed to be done to remove toxins. However, there is little evidence of their presence. One report cites circumstantial evidence of poisoning to horses, sheep and pigs.[8]

References[edit]

  1. ^ Rudbeckia laciniata at USDA PLANTS Database
  2. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964. 
  3. ^ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315. 
  4. ^ "RHS Plant Selector - Rudbeckia laciniata 'Herbstsonne'". Retrieved 2 June 2013. 
  5. ^ Banks, William. 2004. Plants of the Cherokee. Great Smoky Mts. Assn.: Gatlinburg, Tennessee.
  6. ^ Hamel, Paul; Chiltoskey, Mary U. (1975). Cherokee Plants and Their Uses -- A 400 Year History. Sylva Herald Publishing. 
  7. ^ Witthoft, John (1977). "Cherokee Indian Use of Potherbs". Journal of Cherokee Studies 2 (2): 251. 
  8. ^ Kingsbury, J.M. (1964). Poisonous Plants of the United States and Canada. Englewood Cliffs, New Jersey: Prentice-Hall Inc.