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Birdsfoot trefoil 'umbel' (umbrella-like) inflorescence, where all flower stalks spread from a common point.

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Birdsfoot trefoil upright growth

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Birdsfoot trefoil mixed in grass pasture

Birdsfoot Trefoil

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Scientific name:Lotus corniculatus
Cultivars:
  • Maitland, Viking (Upright)
  • Dawn, Empire (Postrate)
  • Origin:Eurasia/North Africa
    Growth Habit:Upright or Prostrate
    Life Cycle:Perennial
     
    Use
     
    Production:2 to 3 tons DM/acre
    Nutritive Value:
  • Non bloating legume
  • High digestibility and protein (CP)
  • Unpalatable to horses
  • Herbaria Image:Click this link
     
    Identification
     
    Seed Head:Umbel, cluster of bright yellow flowers
    Seed:
  • Five to six pods in cluster that looks like a bird's foot.
  • 10-15 seeds/pod, round to kidney shaped, 0.05" wide, dark brown
  • Inoculate with proper N-fixing bacteria type (if seed is not coated or pre-inoculated).
  • Shoot:2-3 inches, slim branches with moderate amount of leaves
    Leaf:Compound, 5 leafets, smooth
     
    Adaptation
     
    Soil:Tolerates low fertility and low drainage
    pH:6.0 to 6.8, tolerates mild alkalinity or acidity
    Moisture:
  • Requires 20+ inches rainfall/yr
  • Tolerates poorly drained soils
  • Temperature:Winter hardiness is moderate to high depending on cultivar
    Other:
  • Requires 16-hr day length to initiate flowering
  •  
    Establishment - Management
     
    Seeding rate:
  • 8 lbs/acre (alone), 4 to 6 lb/acre (mixes)
  • Expected plants/sq ft: 6 to 9 (in 2nd year)
  • Can be seeded with companion crop (oats) at 1to 1.5 bu/acre, and remove companion crop at boot stage
  • Seed cost:
  • $4/lb, ~$200/50 lb
  • $32/acre (alone); $16 to 24/acre (mixes)
  • Planting date:
  • Early spring when soil temperatures reach 50°F, can also be planted in late summer
  • slow to establish
  • Planting depth:
  • 1/4inch drilled
  • must have smooth seedbed
  • Frost seeding:Intermediate
    Fertilization:
  • Annual Phosphorus following soil test.
  • Grazing:
  • Leave 4" stubble between grazings.
  • First grazing should occur after 8" growth.
  • Cannot tolerate close grazings.
  • Hay:
  • Leave 4-6" stubble for good regrowth.
  • Should be given rest period every couple of years.
  •  
    Notes
  • Does not bloat
  • Invasive species in Minnesota