Orobanche ludoviciana

Orobanche ludoviciana, the Louisiana broomrape[1] or prairie broom-rape, is a species of plant in the family Orobanchaceae.[2] It was first described and named by Thomas Nuttall in 1818.[3]

Orobanche ludoviciana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Orobanchaceae
Genus: Orobanche
Species:
O. ludoviciana
Binomial name
Orobanche ludoviciana
Synonyms
List
  • Aphyllon arenosum Suksd.
  • Aphyllon ludovicianum Nutt.) A.Gray
  • Conopholis ludoviciana (Nutt.) A.Wood
  • Myzorrhiza ludoviciana (Nutt.) Rydb.
  • Orobanche multiflora var. arenosa (Suksd.) Munz
  • Phelypaea ludoviciana (Nutt.) G.Don

This species is parasitic on neighboring plants via its roots; common host species include gumweed and wormwoods, though some other Asteraceae are also used.[3] They grow from 1-3 dm often without branches.[3] Leaves are scales and numerous. The inflorescences are many-flowered spikes that occupy a half to a third of the shoot. Flowers sessile or with small up to 15mm pedicels for the lower flowers. Calyx subtended by 1 or 2 bracts, which are bilabiate. Corolla is 1.5-2.5 cm and often a violet-like color. 2n=24, 48, 72, 96. It typically grows in sandy soil. It grows throughout the central plains of North America and northwest into British Columbia and Oregon.[3] Found from June through August.[4] Listed as endangered in Wisconsin and threatened in Illinois and Indiana.

References
  1. USDA, NRCS (n.d.). "Orobanche ludoviciana". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 26 April 2016.
  2. Adam C. Schneider (9 December 2016). "Resurrection of the genus Aphyllon for New World broomrapes (Orobanche s.l., Orobanchaceae)". PhytoKeys. 75 (75): 107–118. doi:10.3897/PHYTOKEYS.75.10473. ISSN 1314-2003. PMC 5234541. PMID 28127248. Wikidata Q28937351.
  3. Collins, L. Turner, Alison E.L. Cromwell & George Yatskievych. 2019. Orobanche ludovicana In Flora of North America, vol. 17. Magnoliophyta: Tetrachondraceae to Orobanchaceae. Flora of North America Editorial Committee, eds. p. 481.
  4. Gleason & Cronquist (1991). Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden.
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