small broomrape USDA PLANTS Symbol: ORMI
U.S. Nativity: Exotic
Habit: Forbs/Herbs Parasitic and Epiphytic Plants
Orobanche minor Smith

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Taxonomic Rank: Magnoliopsida: Scrophulariales: Orobanchaceae
Synonym(s): hellroot

Small broomrape is a fleshy, herbaceous, annual, parasitic plant that grows up to 22 in. (55.9 cm) tall. It attaches to the roots of broadleaf hosts (especially Trifolium spp.). The fleshy stem is yellow to straw colored and sticky. Leaves are greatly reduced (vestigial), alternate and triangular shaped. Flowers, borne on terminal clusters, are snapdragon-like, with ½ in. (1.3 cm) long, purple-tinged petals. Flowering occurs in the winter and spring. Small broomrape is highly prolific. Seeds are very small (dust-size) and remain viable for 10 or more years. Small broomrape is a Federal Noxious Weed and concern exists that it may spread to infest crops such as legume forages and leafy green vegetables. Heavy infestations can cause crop failure. Small broomrape is native to the Middle East and was probably introduced into North America with contaminated seed.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s); Parasitizing Oxalis sp.
Richard Carter, Valdosta State University, Bugwood.org
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Plant(s);
USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org
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Plant(s); Close-up, Colquitt Co., Georgia, 2003
Richard Carter, Valdosta State University, Bugwood.org
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Plant(s);
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org
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Root(s); Roots
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org
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Plant(s);
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org
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Plant(s);
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org
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Seed(s); Seeds. FNW taxon.
Julia Scher, USDA APHIS PPQ, Bugwood.org
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EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

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Invasive Listing Sources:
Georgia Exotic Pest Plant Council