Chamaelirium

Chamaelirium
Inflorescence, as flowers are just beginning to open

Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Liliales
Family: Melanthiaceae
Genus: Chamaelirium
Binomial name
Chamaelirium luteum
(L.) Gray
Synonyms[1]

Chamaelirium is a genus of flowering plants containing the single species Chamaelirium luteum, commonly known as blazing-star,[2] devil's bit,[2] false unicorn,[2] fairy wand,[2] and helonias.[2] It is a perennial herb native to the eastern United States. It can be found in a variety of habitats, including wet meadows and deciduous woodlands.

Chamaelirium luteum has a basal rosette of around six 8–15 cm leaves, from which a single spike-like raceme inflorescence (1–1.5 cm diameter, 8–30 cm length) emerges. The plants are generally dioecious, with male-biased gender ratios in a given population. This is due to higher mortality of female plants, and the tendency of female plants to flower less frequently. Female stalks tend to be taller, giving a total maximum plant height of about 1.2 m, but also tend to have about ten times fewer flowers.[3]

C. luteum is the only member of its monotypic genus, and is quite rare at the fringes of its range.[4]

C. luteum is used as ornamental or medical plant. The root contains high valuable substances, which have already been used as medicine by Native Americans a long time ago.

Distribution

Chamaelirium luteum can be found in temperate North America, United States and Canada. It occurs in the east of the Mississippi and it is historically known from southern Ontario.[4]

Etymology

The etymology of Chamaelirium luteum comes from the Greek and means: Chamai = "on the ground", leirion = "lilly", lutes = "yellow" [5]

Illustration of Chamaelirium luteum

Cultivation

Because Chamaelirium luteum is normally collected wild, it is at risk of extinction. Cultivation techniques are still under development to satisfy the demand from the market.[6]

Site selection

Chamaelirium luteum prefers moist, well drained and acidic soil (pH: 4.5 - 6) with a high humus content. In open fields it should be shaded by a shading structure, to protect it from the direct radiation of the sun. For forest cultivation it should be preferably planted in an area with tall hardwood trees.[6]

Planting

Chamaelirium luteum can be propagated through seeds or root division.

For propagation through root division the rhizomes can be divided by cutting them into pieces of 1/4 inch (6mm). This disc-shaped pieces should be left to callus over night and can be planted in pots on the next day. The soil should be kept moist and shaded until the plants emerge. Young plants can be transplanted in a well prepared growing bed with a high organic matter in a planting distance of 6-10 inch (15–25 cm). To support the plants with nutrients, pine needles, rotted conifer-derived sawdust or bark mulch should be added to the top soil.[6][7]

For propagation through seeds, the seeds should be sown in late Fall or early Winter to a depth of 1/8 inch (3 mm) in breeding beds with high humus content. For a good germination the seed should go through stratification.[8] The plants grow best in soil mixture of peat moss and decomposed pine needles. When the young plants emerge they should be left in undisturbed at least for one growing season. Then they can be transplanted as for the propagation method through root division.[6]

Maintenance

The plant should be moist and shaded and protected from herbivory by snails and slugs or deer in woods. Weeds should always be removed.[7]

Harvesting

The plants are ready for harvest after a growing time of six years. Only the rhizomes are used as crop. Collecting them occurs by digging the rhizome out with a garden fork or a small dinging tool. This should be done in Fall after collecting the mature seeds. After removing the soil and the roots from other plants, the rhizome should be stored unwashed until the further processing. It should be prevented from drying out and also from too high moisture, which could lead to mold infestation. Before processing, the rhizome should be washed carefully.[7]

Processing

1. Step: Drying the clean root in a warm places with adequate airflow. The drying process should be conduct carefully. The root should be dried on the first day with low temperature of 70 °F (20 °C) and high air flow. 2. Step: Dried the root thoroughly with a higher temperature up to 100 °F (35 °C).[6] Once it is completely dry, it can be stored in a cool, dark and dry location for up to three years. 3. Step: Milling the dried root with a mill or by a kitchen blender.

Uses

C. luteum is used as ornamental or medical herb. Historically it has been used by the Natives of America. It has the reputation, to have been one of the most widely used in North America.[9]

It was traditionally used to prevent miscarriages and it has the reputation of improving fertility.[9] Nowadays it is used to treat different problems as menstrual problems, pregnancy complaints, fertility issues, ovarian cysts and diuretic [7]

Bioactive components

The bioactive components are a mixture of steroidal saponins, including chamaelirin and aglycone diosgenin. These bioactive substances act as an emmenagogue, diuretic and emetic.[7]

References

  1. ↑ "The Plant List: A Working List of All Plant Species". Retrieved 5 September 2014.
  2. 1 2 3 4 5 "USDA GRIN Taxonomy". Retrieved 5 September 2014.
  3. ↑ Meagher, T. R.; J. Antonovics (1982). "The population biology of Chamaelirium luteum, a dioecious member of the lily family: life history studies". Ecology. Ecological Society of America. 63 (6): 1690–1700. doi:10.2307/1940111. JSTOR 1940111.
  4. 1 2 Allard, Dorothy J. (2003). Chamaelirium luteum (L.) A. Gray (Devil's Bit). Conservation and Research Plan for New England (PDF). Framingham, Massachusetts, USA: New England Wild Flower Society.
  5. ↑ Tenenbaum, Frances (2003). Taylor's encyclopedia of plants. Boston: Houghton Mifflin. ISBN 9780618226443.
  6. 1 2 3 4 5 Cech, Richo (2002). Growing at-risk medicinal herbs : cultivation, conservation, and ecology. Williams, OR: Horizon Herbs. pp. 314 pp. ISBN 9780970031211.
  7. 1 2 3 4 5 Jackie Greenfield, Jeanine M. Davis (2004). Medicinal Herb Production Guide (PDF). North Varolina Consortioum on Natural Medicines and Public Health. p. 5.
  8. ↑ Baskin, Carol C.; Baskin Jerry M. (2001). "Morphophysiological dormancy in seeds of Chamaelirium luteum, a long-lived dioecious lily.". Journal of Botanical Society (128): 7–15.
  9. 1 2 Moser, J. (1917). "The pharmacognosy of helonias.". American Journal of Pharmacy (89): 291–296.

External links

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