Orobanche fasciculata

Orobanche fasciculata

Apparently Secure  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Orobanchaceae
Genus: Orobanche
Species:
O. fasciculata
Binomial name
Orobanche fasciculata
Varieties[2]
  • O. f. var. fasciculata
  • O. f. var. franciscana
Synonyms[2]
List
    • Anoplanthus fasciculatus
    • Anoplon fasciculatum
    • Aphyllon fasciculatum
    • Gymnocaulis fasciculata
    • Loxanthes fasciculata
    • Phelypaea fasciculata
    • Thalesia fasciculata

Orobanche fasciculata is a species of broomrape known by the common name clustered broomrape. It is native to much of western and central North America from Alaska to northern Mexico to the Great Lakes region, where it grows in many types of habitat. It is a parasite growing attached to the roots of other plants, usually members of the Asteraceae such as Artemisia; and other genera such as Eriodictyon and Eriogonum. This plant produces one or more stems from a bulbous root,[3] growing erect to a maximum of about 20 centimeters in height. The stems, leaves and five-lobed flowers are covered by sticky hairs.[3] As a parasite taking its nutrients from a host plant, it lacks chlorophyll as well as a water-storage system.[3] It is variable in color, often yellowish or purple. The inflorescence is a raceme of up to 20 flowers, each on a pedicel up to 15 centimetres (5+7⁄8 in) long. Each flower has a calyx of hairy triangular sepals and a tubular corolla 1.5–3 cm (5⁄8–1+1⁄8 in) long. The flower is yellowish or purplish in color.

Taxonomy

Orobanche fasciculata was given its scientific name by Thomas Nuttall in 1818. It is classified in the genus Orobanche within the family Orobanchaceae. It has two varieties:[2]

  • Orobanche fasciculata var. fasciculata – From Alaska to Baja California, east to Ontario[4]
  • Orobanche fasciculata var. franciscana – Oregon and California[5]

It has 17 synonyms of the species or one of its varieties.[2][4][5]

Table of Synonyms
Name Year Rank Synonym of: Notes
Anoplanthus fasciculatus (Nutt.) Walp. 1844 species O. fasciculata ≡ hom.
Anoplanthus luteus (A.Gray) Rydb. 1932 species var. fasciculata = het.
Anoplon fasciculatum (Nutt.) G.Don 1838 species O. fasciculata ≡ hom.
Aphyllon fasciculatum (Nutt.) Torr. & A.Gray 1848 species O. fasciculata ≡ hom.
Aphyllon fasciculatum var. luteum A.Gray 1878 variety var. fasciculata = het.
Aphyllon franciscanum (Achey) A.C.Schneid. 2021 species var. franciscana ≡ hom.
Gymnocaulis fasciculata (Nutt.) Nutt. 1848 species O. fasciculata ≡ hom.
Loxanthes fasciculata (Nutt.) Raf. 1825 species O. fasciculata ≡ hom.
Orobanche fasciculata var. lutea (A.Gray) Achey 1933 variety var. fasciculata = het.
Orobanche fasciculata f. lutea (A.Gray) Beck 1930 form var. fasciculata = het.
Orobanche fasciculata var. subulata Goodman 1947 variety var. fasciculata = het.
Orobanche fasciculata var. typica Achey 1933 variety O. fasciculata ≡ hom., not validly publ.
Phelypaea fasciculata (Nutt.) Spreng. 1825 species O. fasciculata ≡ hom.
Phelypaea lutea Parry 1874 species var. fasciculata = het., nom. illeg.
Thalesia fasciculata (Nutt.) Britton 1894 species O. fasciculata ≡ hom.
Thalesia fasciculata var. lutea (A.Gray) Britton 1894 variety var. fasciculata = het.
Thalesia lutea (A.Gray) Rydb. 1909 species var. fasciculata = het.
Notes: ≡ homotypic synonym ; = heterotypic synonym

Uses

Among the Zuni people it is a traditional remedy for hemorrhoids. The whole plant was ground up using two stones and the powder inserted into the rectum.[6]

References

Citations

  1. ^ NatureServe 2025.
  2. ^ a b c d POWO 2025a.
  3. ^ a b c Taylor, Ronald J. (1994) [1992]. Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. p. 26. ISBN 0-87842-280-3. OCLC 25708726.
  4. ^ a b POWO 2025b.
  5. ^ a b POWO 2025c.
  6. ^ Stevenson 1915, p. 61.

Sources

Books
Web sources


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