Orobanche ludoviciana

Orobanche ludoviciana, the Louisiana broomrape[1] or prairie broom-rape, is a species of plant in the family Orobanchaceae. This parasitic plant is not specific, but especially favors Artemisia and Asteraceae. They grow from 1-3 dm often without branches. 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. Inhabits sandy soil. Found in Illinois and Indiana, as well as Saskatchewan to Texas, and west to California and northern Mexico. Found from June through August.[2] Listed as endangered in Wisconsin and threatened in Illinois and Indiana.

Orobanche ludoviciana
Scientific 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

References
  1. "Orobanche ludoviciana". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 26 April 2016.
  2. Gleason & Cronquist (1991). Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden.
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