Allergen:
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Alfalfa, lucerne |
Family name:
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Bean or pea family |
Scientific name:
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Medicago sativa L. |
Family name latin:
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Fabaceae |
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| Description: |
A 20 to 80 cm high, perennial plant with odd-pinnated leaves; flowers about 1 cm long, blue or violett, sometimes also white-colored, greenish or yellowish; entomogamous (bee pasture) and autogamous; flowering season: V - IX; the pods are curled up into a spiral in two to three loose bends; cultivated plant since early ancient times, originating from Near East; rich feed source; a nitrogen collector with roots reaching up to 5 m into the earth;
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| Occurence: |
Cultivated and gone wild in dry fields and along paths and banks;
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| Related species: |
Especially frequently occurring in hybrid populations with Medicago falcata L. and then called Medicago x varia Mart.; Medicago lupulina L., black medick; widespread in lime-rich meadows and dry fields (V - IX);
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| Allergy trigger: |
Pollen, approx. 30 x 35 µm;
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| Invasions path: |
Inhalative (May - September);
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| Allergology: |
Because of the pollination type only small amounts of pollen are released; this results in a fairly low clinical relevance; the species should only lead to a sensitization in exceptional cases, as i.e. in crop-growing areas;
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| Clinical relevance: |
light
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