Biology:Schoenocaulon

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Short description: Genus of flowering plants

Schoenocaulon
Schoenocaulon officinale[1]
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Liliales
Family: Melanthiaceae
Tribe: Melanthieae
Genus: Schoenocaulon
A.Gray
Synonyms[2]
  • Sabadilla Brandt & Ratzeb.
  • Skoinolon Raf.
  • Asagraea Lindl.

Schoenocaulon is a North American genus of perennial herbaceous flowering plants, ranging from the southern United States to Peru.[3] It is a member of the Melanthiaceae, according to the APG III classification system, and is placed in the tribe Melanthieae. Unlike other genera in the tribe, the flowers are arranged in a spike; depending on the species the flower stalks for each flower are either very short or completely absent.[4] Feathershank is a common name,[5] the medicinally used S. officinale is called Sabadilla (pronunciation: /sab-uh-dil-uh/, IPA: /ˌsæb əˈdɪl ə/).

Plants generally grow in chaparral, oak, or pine forests. Grazing has narrowed the natural ranges of some species to only steep, rocky terrain.[6] Mexico is the center of Schoenocaulon diversity, with 22 endemic species - some with distributions limited to single mountain ranges.[4] The two species with the widest distributions, S. yucatanense (sometimes treated as part of S. ghiesbreghtii) and S. officinale (sabadilla), may have been spread by pre-Columbians who used the seeds as pesticides.[4]

The petal and sepal color varies by species, with some shade of green being most common, but with maroon, cream, and bright red also represented.[4]

species[2]
  • Schoenocaulon calcicola - Oaxaca
  • Schoenocaulon caricifolium - Tamaulipas
  • Schoenocaulon comatum - San Luis Potosí, Puebla, Oaxaca
  • Schoenocaulon conzattii - Oaxaca
  • Schoenocaulon dubium - Florida
  • Schoenocaulon frameae - Puebla
  • Schoenocaulon ghiesbreghtii - S Texas to Veracruz
  • Schoenocaulon ignigenum - Tamaulipas, Nuevo León
  • Schoenocaulon intermedium - San Luis Potosí, Hidalgo
  • Schoenocaulon jaliscense - Jalisco, Oaxaca
  • Schoenocaulon macrocarpum - Tamaulipas, Nuevo León
  • Schoenocaulon madidorum - Veracruz, Puebla, Oaxaca
  • Schoenocaulon megarrhizum - Chihuahua, Sonora, Sinaloa
  • Schoenocaulon mortonii - México State, Jalisco, Michoacán
  • Schoenocaulon oaxacense - Oaxaca
  • Schoenocaulon obtusum - Hidalgo, México State
  • Schoenocaulon officinale - C + S Mexico, Central America, Venezuela - sabadilla
  • Schoenocaulon pellucidum - Nayarit
  • Schoenocaulon plumosum - Coahuila, Nuevo León, Tamaulipas
  • Schoenocaulon pringlei - Hidalgo, Veracruz, México State, D.F.
  • Schoenocaulon rzedowskii - Mexico, Puebla
  • Schoenocaulon tenorioi - Oaxaca, Puebla
  • Schoenocaulon tenue - Morelos
  • Schoenocaulon tenuifolium - Oaxaca, Puebla
  • Schoenocaulon texanum - New Mexico, Texas , Chihuahua, Coahuila, Nuevo León
  • Schoenocaulon tigrense - Jalisco

References

  1. 1897 illustration from Franz Eugen Köhler, Köhler's Medizinal-Pflanzen
  2. 2.0 2.1 Kew World Checklist of Selected Plant Families
  3. Zomlefer, Wendy B.; Judd, Walter S. (2008). "Two New Species of Schoenocaulon (Liliales: Melanthiaceae) from Mexico Supported by ITS Sequence Data". Systematic Botany 33 (1): 117–124. doi:10.1600/036364408783887474. 
  4. 4.0 4.1 4.2 4.3 Zomlefer, Wendy B.; Whitten, W. Mark; Williams, Norris H.; Judd, Walter S. (2006), "Infrageneric phylogeny of Schoenocaulon (Liliales: Melanthiaceae) with clarification of cryptic species based on ITS sequence data and geographical distribution", American Journal of Botany 93 (8): 1178–1192, doi:10.3732/ajb.93.8.1178, PMID 21642183 
  5. "Schoenocaulon". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=SCHOE. Retrieved 7 November 2015. 
  6. Frame, D. 1990. A revision of Schoenocaulon (Liliaceae: Melanthieae). Ph. D. Thesis. The City University of New York. New York. 269 pp.

Wikidata ☰ Q2117876 entry