Family:
Fabaceae
Scientific Name:
Lupinus spp
Toxins:
quinolizidine alkaloids
Flower Color:
Found:
ornamental, pastures, roadsides, waterways, woods

Geographical Distribution

Lupins distribution - United States

Lupins

Lupinus spp

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Lupins (Lupinus spp.) are showy annual or perennial blooming flowers from the legume family, that are native to North and South Americas and the Mediterranean. Large clusters of showy pea-like flowers develop along stems on long stalks. Leaves are alternatively arranged and fan-shaped with 5-13 leaflets. They produce flat, oblong-shaped seedpods that hold seeds.

Toxic components
Lupins contain quinolizidine alkaloids, which interfere with normal function of the nervous system. The seeds and seedpods contain the highest concentration of toxins.

Symptoms

  • muscle tremors
  • loss of appetite
  • diarrhea
  • incoordination

Control

CHEMICAL CONTROL: Lupine can be controlled with 2,4-D (1 kg ae/Ac), 2,4-D + dicamba (0.5 + 0.25 kg ai/Ac), or trichlopyr (0.25 to 0.75 kg ae/Ac). Spray actively growing plants after they are 10 cm high but before they bloom. Re-invasion is rapid and re-treatment may be necessary every 4 to 5 years.

References