Echinacea angustifolia

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Echinacea angustifolia
Echinacea angustifolia.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Echinacea
Species:
E. angustifolia
Binomial name
Echinacea angustifolia
Synonyms[1]

Brauneria angustifolia (DC.) A.Heller

Echinacea angustifolia, the narrow-leaved purple coneflower or blacksamson echinacea,[2] is a North American plant species in sunflower family. It is widespread across much of the Great Plains of central Canada and the central United States, with additional populations in nearby regions.[3]

Echinacea angustifolia is a perennial herb up to 40 to 70 centimetres (16 to 28 in) tall with spindle-shaped taproots that are often branched. The stems and leaves are moderately to densely hairy. The plant produces flower heads one per side branch, each at the end of a long peduncle. Each head contains 8–21 pink or purple ray florets plus 80–250 orange disc florets.[2]

Echinacea angustifolia blooms late spring to mid summer. It is found growing in dry prairies and barrens with rocky to sandy-clay soils.[2] There are two subspecies:[4][5]

Many Native American groups used this plant for a variety of medicinal purposes, including pain relief and relief of colds and toothaches.[7] The medicinal properties of E. angustifolia have been so-far unsubstantiated by science.[8]

References[edit]

  1. ^ The Plant List, Echinacea angustifolia DC.
  2. ^ a b c Flora of North America, Narrow-leaved purple coneflower, blacksamson echinacea, Echinacea angustifolia de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 554. 1836.
  3. ^ Biota of North America Program 2014 county distribution map
  4. ^ McGregor, Ronald Leighton 1968. Transactions of the Kansas Academy of Science 70(3): 368–369
  5. ^ Tropicos, Echinacea angustifolia var. strigosa McGregor
  6. ^ Echinacea angustifolia, United States Department of Agriculture PLANTS Profile
  7. ^ Echinacea angustifolia. United States Department of Agriculture NRCS Plant Guide.
  8. ^ PubMed.gov Effects of echinacea on the frequency of upper respiratory tract symptoms: a randomized, double-blind, placebo-controlled trial[1]