Blacksamson Echinacea (Angustifolia)

The Blacksamson Echinacea (Angustifolia) is generally described as a perennial forb/herb. This is native to the U.S. (United States) .

Uses of : Landscaping, Medicinal, Culinary, etc.

Ethnobotanic: The purple coneflower, Echinacea angustifolia, was and still is the most widely used medicinal plant of the Plains Indians (Kindscher 1992). It was used as a painkiller and for a variety of ailments, including toothache, coughs, colds, sore throats, and snake bite. Echinacea angustifolia was used as an analgesic by the Cheyenne, the Dakota, the Fox, and the Winnebago (Moerman 1986). Purple coneflower is used as an antidote for poisonous conditions, snake bite, and other poisonous bites by the Winnebago, Ponca, Pawnee, Omaha, Dakota, and by most Montana tribes (Gilmore 1977). The root was used to relieve toothache by the Dakota, Omaha, Pawnee, Ponca, Teton Sioux, and Winnebago (Moerman 1986). The Cheyenne chewed the root to stimulate the flow of saliva, which was especially useful for Sun Dance participants as a thirst preventative (Hart 1981). A wash was used as a dressing for burns to relieve pain by the Dakota, Winnebago, Omaha, Pawnee, and Ponca.

The Fox used purple coneflower as an anti-convulsive and gastro-intestinal aid. The Kiowa chewed coneflower root for coughs and sore throats. The Omaha and Pawnee used a smoke treatment as a remedy for headache. A poultice of smashed roots were applied as an anesthetic to arms and hands by the Omaha, and a poultice was applied to enlarged glands as a treatment for diseases such as mumps by the Pawnee, Ponca, Dakota, and Winnebago. Purple coneflower was used to increase endurance in the sweat lodge ceremony by the Dakota, Pawnee, Ponca, and Winnebago. The Lakota ate the root and green fruit when they were thirsty or perspiring (Rogers 1980, Munson 1981). The Teton Sioux used coneflower to cure tonsillitis. The Omaha and Ponca used the plant as eyewash. When the roots were mixed with blazing star (Mentzelia laevicaulis) and boiled, the resulting tea was drunk for smallpox (Kindscher 1992). Purple coneflower roots mixed with puffball (Lycoperdon species) spores and skunk oil were used in the treatment of boils. The smoke from burning purple coneflower was used as a treatment for distemper in horses by the Ponca, Dakota, Pawnee, and Winnebago.

The Omaha, the Lakota, and the Ponca sometimes used the seed heads to comb their hair (Kindscher 1992). Purple coneflower stalks were used in play by Pawnee children. They would whirl two flower stalks one around the other, the two stalk touching by the flower heads.

The purple coneflower was the only native prairie plant popularized as a medicine by folk practitioners and doctors, and was used extensively as a folk remedy (Kindscher 1992). The use of the purple coneflower root was used by early settlers in Oklahoma as an aid in nearly every kind of sickness. If a cow or a horse did not eat well, people administered Echinacea in its feed.

Echinacea is widely used as an herbal remedy today, primarily as an immuno-stimulant. Echinacea angustifolia root was found to possess mild antibiotic activity against Streptococcus and Staphyloccus aureus (Stoll et al. 1950). A pentane-oil extracted from the root was found to be inhibitory to Walker carcinosarcoma 256 and P-388 lymphocytic leukemia (Voaden and Jacobson 1972). Italian investigators found the wound-healing effects of Echinacea to be attributable to echinacin B (Bonadea et al. 1971). Perhaps the most important finding so far is the discovery of large, highly active polysaccharide molecules in E. angustifolia that possess immunostimulatory properties (Wagner and Proksch 1985, Wagner et al. 1985). Stimulation of the immune system appears to be strongly influenced by dose level. Recent pharmacological studies indicate that a 10-mg/kg daily dose of the polysaccharide over a ten-day period is effective as an immuno-stimulant. Increases in the daily dosage beyond this level, however, resulted in “markedly decreased pharmacological activity” (Wagner and Proksch 1985, Wagner et al. 1985). Other research has shown that the purple coneflower produces an ant

General Characteristics

General: Sunflower family (Asteraceae). Purple coneflower is a perennial herb 1.5-6 dm (0.5-2 ft) tall, with a woody taproot. The plant has one to several rough-hairy stems, mostly unbranched. Leaves are alternate, simple, and narrowly lance-shaped 5-30 cm (2-12 in) long, 1.5-4 cm (0.5-1.5 in) wide, with entire margins. Flowers look like lavender sunflowers with the heads 4-7.5 cm wide (1.5-3 in) wide, at the ends of long stalks. Flowers bloom from June to July. Ray flowers are 2-4 cm (0.75-1.5 in) long, spreading or drooping, light pink to pale purple. The disk flowers are 5-lobed, brownish-purple, and situated among stiff bracts. Pollen grains are yellow. Fruits are small, dark, 4-angled achenes.

Required Growing Conditions

The purple coneflower grows in open rocky prairies and plains. It is found primarily in the Great Plains, east of the Rocky Mountains from Texas to Montana and Saskatchewan, to eastern Oklahoma, western Iowa, and western Minnesota. For current distribution, please consult the Plant Profile page for this species on the PLANTS Web site.

Cultivation and Care

Native Echinacea species are dwindling in the wild from loss of habitat and over-harvesting. Echinacea angustifolia is threatened on one hand by conversion of native habitat, and on the other hand by heavy harvesting to serve the herbal pharmaceutical industry. It takes three to four years for roots to reach harvestable size (Foster 1991). Yields for cultivated, dried roots of three-year-old Echinacea purpurea grown at Trout Lake, Washington, were 131 kg/ha (1,200 lbs/acre) (Foster 1991). According to Richo Cech (1995), a mature two-year old E. purpurea plant yields 2.25 pounds of fresh flowering aerial portions and 0.5 pounds of fresh root per plant. Yield for the purple coneflower is not available, but probably would be less because the plant is smaller.

Propagation from Cuttings Purple coneflower can be propagated by division of the crowns. This technique results in stronger plants initially and eliminates the tedious nurturing and tending of the slow-growing seedlings (Kindscher 1992). Harvest roots when plants are dormant, when leaves begin to turn brown. Wash roots and remove most for use. Then carefully divide the crown by hand to make one to five “plantlets.” Replant the divisions as soon as possible. It is important that they don’t dry out, so if replanting is delayed a couple of hours, dip the plants briefly in water and keep them in a sealed plastic bag in a cool, shady place until you are ready to replant them. When replanting, ensure that the remaining fine roots are well spread out in the planting hole and the soil is pressed firmly around the plant. These plantlets can be grown in flats in the greenhouse during the winter to re-establish their root systems, then replanted in the field the following spring for another round of production.

Seed Propagation Echinacea angustifolia has a reputation for poor germination. Actually, when the proper steps are take, it has extremely dependable germination. The following information is provided by Richo Cech (1995). Seeds require a 12-week period of cold conditioning, or cold stratification, to germinate. Outdoors, scatter seed thinly on well-limed, weed-free, open beds in the fall or early winter, covering the seed with a light sifting of potting soil. The seed is thereby subjected to the optimal conditions of oscillating temperatures, an extremely important pre-germination environment for Echinacea seed. An acceptable alternative to outdoor cold conditioning is to mix the seeds with damp sand and switch between the refrigerator and freezer several times over a period of 12 weeks. This seed may then be sown directly in the garden or field. The conditioned seed may also be sown in flats and placed in the greenhouse or outside. Another method of cold stratification is to wrap the seeds in wet peat moss and place them in a plastic bag in the refrigerator for two to four months. Plant seeds in deep plug trays; this allows the taproot to develop straight down to a depth of six or eight inches prior to transplanting. Seeds should be barely covered with soil when planted. E. angustifolia seedlings have a tendency toward transplant shock and slow growth, especially if the development of the taproot is compromised by keeping seedlings in the flats or plots too long. Seedlings have little vigor and must be carefully weeded and watered. For field cultivation, close spacing of the plants allows for optimal root yield per area planted. Plants may be thinned to 6-12 inch spacing in the row or bed. Keep relatively free of weeds and water occasionally during dry spells. Over-watering should be avoided, for the root crowns are subject to rotting. A sparing side dressing of organic compost, usually in the mid-spring, will assist this sometimes slow-growing herbaceous perennial in outranking competitive weeds.

An ounce of well-cleaned E. angustifolia seed contains approximately 8,000 seeds. A pound contains around 128,000 seeds. Given a very tight spacing

General Upkeep and Control

Herbivores such as insects and deer are not a problem with Echinacea. Gophers and moles can be a problem eating the roots. Goldfinches love the Echinacea seed crop and can clear out all the seed in a few days.

Plant Basics
General Type Forb/herb
Growth Duration Perennial
Plant Nativity Native to U.S.

Source: USDA, NRCS, PLANTS Database,
National Plant Data Center, Baton Rouge, LA 70874-4490 USA