Orobanche ludoviciana
| Orobanche ludoviciana | |
|---|---|
| |
| In Dillberry Lake Provincial Park | |
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[1] | |
|
List
| |
Orobanche ludoviciana, the Louisiana broomrape[2] or prairie broom-rape, is a species of plant in the family Orobanchaceae.[3] It was first described and named by Thomas Nuttall in 1818.[4]
This species is parasitic on neighboring plants via its roots; common host species include gumweed and wormwoods, though some other Asteraceae are also used.[4] They grow from 1-3 dm often without branches.[4] 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.[4] Found from June through August.[5]
Taxonomy
[edit]Orobanche ludoviciana was given its scientific name by Thomas Nuttall in 1818. It is part of the genus Orobanche in the family Orobanchaceae. According to Plants of the World Online it has nine synonyms.[1]
| Name | Year | Rank | Notes |
|---|---|---|---|
| Aphyllon arenosum Suksd. | 1906 | species | = het. |
| Aphyllon ludovicianum (Nutt.) A.Gray | 1876 | species | ≡ hom. |
| Conopholis ludoviciana (Nutt.) A.Wood | 1861 | species | ≡ hom. |
| Myzorrhiza ludoviciana (Nutt.) Rydb. | 1903 | species | ≡ hom. |
| Orobanche ludoviciana f. albinea B.Boivin | 1972 | form | = het. |
| Orobanche ludoviciana var. arenosa (Suksd.) Cronquist | 1959 | variety | = het. |
| Orobanche ludoviciana var. genuina Beck | 1890 | variety | ≡ hom., not validly publ. |
| Orobanche multiflora var. arenosa (Suksd.) Munz | 1930 | variety | = het. |
| Phelypaea ludoviciana (Nutt.) G.Don | 1838 | species | ≡ hom. |
| Notes: ≡ homotypic synonym ; = heterotypic synonym | |||
Conservation
[edit]As of 2025 NatureServe has not evaluated Orobanche ludoviciana at the global level. It is presumed to be extripated, locally extinct, in Iowa and possibly extripated from West Virginia. It is rated as critically imperiled in Missouri and Wisconsin.[6]
References
[edit]Citations
[edit]- ^ a b POWO 2025.
- ^ NRCS. "Orobanche ludoviciana". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 26 April 2016.
- ^ 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.
- ^ a b c d 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.
- ^ Gleason & Cronquist (1991). Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden.
- ^ NatureServe 2025.
Sources
[edit]- Web sources
- NatureServe (1 November 2025). "Orobanche ludoviciana". NatureServe Explorer. Arlington, Virginia. Retrieved 5 December 2025.
- POWO (2025). "Orobanche ludoviciana Nutt". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 5 December 2025.