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Echinacea purpurea | |
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At a prairie preserve in southwest Arkansas | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Echinacea |
Species: | E. purpurea |
Binomial name | |
Echinacea purpurea | |
Synonyms | |
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Echinacea purpurea, the eastern purple coneflower, [4] purple coneflower, hedgehog coneflower, or Echinacea, is a North American species of flowering plant in the family Asteraceae. [5] It is native to parts of eastern North America and present to some extent in the wild in much of the eastern, southeastern and midwestern United States, as well as in the Canadian Province of Ontario. It is most common in the Ozarks, the Mississippi Valley, and the Ohio Valley. Its habitats include dry open woods, prairies, and barrens.
Echinacea purpurea is an herbaceous perennial up to 120 centimeters (47 inches) tall by 25 cm (10 in) wide at maturity. Depending on the climate, it blooms throughout summer into autumn. Its cone-shaped flowering heads are usually, but not always, purple in the wild. Its individual flowers (florets) within the flower head are hermaphroditic, having both male and female organs in each flower. It is pollinated by butterflies and bees. The alternate leaves, borne by a petiole from 0 to 17 cm (0 to 7 in), are oval to lanceolate, 5–30 cm (2–12 in) long by 5–12 cm (2–5 in) wide; the margin is tightened to toothed.
The inflorescence is a capitulum, 7 to 15 cm (3 to 6 in) in diameter, formed by a prominent domed central protuberance consisting of multiple small yellow florets. These are surrounded by a ring of pink or purple ligulate florets. The tubular florets are hermaphrodite while the ligular florets are sterile. The involucral bracts are linear to lanceolate. The plant prefers well-drained soils in full sun. [4] The fruit is an achene, sought after by birds.
Echinacea is derived from Greek, meaning 'spiny one', in reference to the spiny sea urchins 'εχίνοι' which the ripe flower heads of species of this genus resemble. The epithet purpurea means 'reddish-purple'. [6]
The species was originally described and named Rudbeckia purpurea by Carl Linnaeus in 1753. In 1794, it was placed by Conrad Moench in genus Echinacea and named Echinacea purpurea. [7]
In 1818, Thomas Nuttall described a variety and named it Rudbeckia purpurea var. serotina. In 1836, Augustin Pyramus de Candolle raised this variety to the rank of species and moved it to genus Echinacea, naming it Echinacea serotina. [7] In 2002, Binns et al. discovered a misapplication of the name Echinacea purpurea(L.) Moench for the taxon correctly named Echinacea serotina(Nutt.) DC. in 1836. The authors proposed to retain the names so as not to cause confusion among gardeners and herbalists. [8]
Echinacea purpurea is native to parts of eastern North America [9] and present to some extent in the wild in much of the eastern, southeastern and midwestern United States as well as in the Canadian Province of Ontario. It is most common in the Ozarks, the Mississippi Valley, and the Ohio Valley. [10] [11] Its habitats include dry open woods, prairies, and barrens.
Echinacea purpurea is grown as an ornamental plant in temperate regions. It is ideal for curbs, walkways or beds. The flowers can also go into the composition of fresh bouquets. Numerous cultivars have been developed for flower quality and plant form. [5] The plant grows in sun or light shade. [12] It thrives in either dry or moist soil and can tolerate drought once established. The cultivars 'Ruby Giant' [13] and 'Elbrook' [14] have gained the Royal Horticultural Society's Award of Garden Merit. [15]
Echinacea purpurea is propagated either vegetatively or from seeds. [9] Useful vegetative techniques include division, root cuttings, and basal cuttings. Clumps can be divided, or broken into smaller bunches, which is normally done in the spring or autumn. Cuttings made from roots that are "pencil-sized" will develop into plants when started in late autumn or early winter. [5] Cuttings of basal shoots in the spring may be rooted when treated with rooting hormones, such as IBA at 1000 ppm. [16]
Seed germination occurs best with daily temperature fluctuations [9] or after stratification, [10] which help to end dormancy. Seeds may be started indoors in advance of the growing season or outdoors after the growing season has started.
Many pollinators are attracted to E. purpurea. Bees that are attracted to the flowers include bumblebees, sweat bees, honey bees, the sunflower leafcutter bee, and the mining bee Andrena helianthiformis. Butterflies that visit include monarchs, swallowtail butterflies, and sulphur butterflies. [17] Birds, particularly finches, eat the seeds and disperse them through their droppings. [18]
Slugs [9] and rabbits will also eat the foliage when young, or shortly after emerging in the spring. [19] Additionally, roots can be damaged and eaten by gophers. [10]
Echinacea purpurea contains alkamides, caffeic acid derivatives, polysaccharides, and glycoproteins. [20] Nicotiflorin is the dominant flavonoid in E. purpurea, followed by the flavonoid rutin. [21]
Native Americans have used the plant as traditional medicine to treat many ailments. [22]
Echinacea is a genus of herbaceous flowering plants in the daisy family. It has ten species, which are commonly called coneflowers. They are native only in eastern and central North America, where they grow in wet to dry prairies and open wooded areas. They have large, showy heads of composite flowers, blooming in summer. The generic name is derived from the Greek word ἐχῖνος, meaning "hedgehog", due to the spiny central disk. These flowering plants and their parts have different uses. Some species are cultivated in gardens for their showy flowers. Two of the species, E. tennesseensis and E. laevigata, were formerly listed in the United States as endangered species; E. tennesseensis has been delisted due to recovery and E. laevigata is now listed as threatened.
Rudbeckia hirta, commonly called black-eyed Susan, is a North American flowering plant in the family Asteraceae, native to Eastern and Central North America and naturalized in the Western part of the continent as well as in China. It has now been found in all 10 Canadian Provinces and all 48 of the states in the contiguous United States.
Echinacea angustifolia, the narrow-leaved purple coneflower or blacksamson echinacea, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread across much of the Great Plains of central Canada and the central United States, with additional populations in surrounding regions.
Rudbeckia is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer.
Dracopis is a monotypic genus with Dracopis amplexicaulis the sole species. It is native to North America.
Echinacea tennesseensis, also known as the Tennessee coneflower or Tennessee purple coneflower, is a flowering plant in the family Asteraceae, endemic to the cedar glades of the central portion of the U.S. state of Tennessee.
Campanula medium, common name Canterbury bells, is an annual or biennial flowering plant of the genus Campanula, belonging to the family Campanulaceae. In floriography, it represents gratitude, or faith and constancy.
Rudbeckia fulgida, the orange coneflower or perennial coneflower, is a species of flowering plant in the family Asteraceae, native to eastern North America.
Rudbeckia triloba, the browneyed or brown-eyed susan, thin-leaved coneflower or three-leaved coneflower, is a species of flowering plant in the family Asteraceae with numerous, yellow, daisy-like flowers. It is native to the central and eastern United States and is often seen in old fields or along roads. It is also cultivated as an ornamental.
Echinacea laevigata, the smooth purple coneflower, is a federally listed threatened species of plant found in the Piedmont of the eastern United States. Most populations are found on roadsides and other open areas with plenty of sunlight, often on calcium- and magnesium- rich soils.
Echinacea atrorubens, called the Topeka purple coneflower, is a North American species of flowering plant in the family Asteraceae. It is native to eastern Kansas, Oklahoma, and eastern Texas in the south-central United States. It is found growing in dry soils around limestone or sandstone outcroppings and prairies.
Echinacea pallida, the pale purple coneflower, is a species of herbaceous perennial plant in the family Asteraceae. It is sometimes grown in gardens and used for medicinal purposes. Its native range is the central region of the United States and Ontario, Canada.
Echinacea simulata, commonly called wavy leaf purple coneflower, glade coneflower, or prairie purple coneflower, is a species of perennial flowering plant in the family Asteraceae. It is native to the east-central states of the United States. Its natural habitat is dry, calcareous, open areas such as barrens and woodlands.
Echinacea paradoxa, the yellow coneflower, Bush's purple coneflower, or Ozark coneflower, is a North American species of flowering plant in the family Asteraceae. It is native to southern Missouri, Arkansas, and south-central Oklahoma. It is listed as threatened in Arkansas.
Echinacea sanguinea, the sanguine purple coneflower, is a herbaceous perennial native to open sandy fields and open pine woods and prairies in eastern Texas, southeastern Oklahoma, Louisiana, and southwestern Arkansas. It is the southernmost Echinacea species. The specific epithet sanguinea, which is Latin for "blood", refers to the color of the petals.
Dampiera purpurea, commonly known as the mountain- or purple dampiera, is a subshrub in the family Goodeniaceae native to Victoria, New South Wales and Queensland in eastern Australia. Its blue-purple flowers appear in spring and early summer, and it is pollinated by insects such as butterflies and bees. Adapting readily to cultivation, Dampiera purpurea is grown as a garden plant in Australia.
Ratibida pinnata is a species of flowering plant in the family Asteraceae known by the common names pinnate prairie coneflower, gray-head coneflower, yellow coneflower, and prairie coneflower. It is native to the central and eastern United States and Ontario in Canada.
Echinacea serotina, the narrow-leaved purple coneflower or blacksamson echinacea, is a species of flowering plant in the family Asteraceae. It is native to the states of Arkansas and Louisiana in the United States. The species is sometimes listed as being found only in Louisiana, but the type collection was made in Arkansas, part of Louisiana at the time.
Eastern coneflower is a common name for several plants and may refer to:
Rudbeckia texana, commonly known at Texas coneflower or shiny coneflower, is a perennial plant in the family Asteraceae native to the Western Gulf coastal grasslands of Texas and Louisiana.