Medicago sativa subsp. falcata
luzerne en faux, yellow alfalfa
yellow.
falcate.
= 16, 32.
Medicago sativa subsp. falcata
AK; AL; AR; AZ; CO; DC; DE; FL; GA; IA; ID; IL; IN; KY; LA; MA; MD; MI; MN; MO; MS; MT; NC; ND; NE; NJ; NM; NV; NY; OH; OR; PA; SC; SD; TN; TX; UT; VA; WA; WI; WV; WY; AB; BC; MB; NB; NS; NT; NU; ON; PE; QC; SK; YT; n Eurasia [Introduced in North America; introduced also in South America (Argentina), Australia]
Subspecies falcata is very widespread in northern Eurasia. It has given rise to a few domesticated forms, but there are only a few cultivars. Although not often cultivated for forage, subsp. falcata has been sown in wild areas of the northern United States and Canada to promote wildlife. It is much used for breeding alfalfa resistant to cold, acid soils, and disease, and is able to thrive in many colder areas of North America. In Eurasia, it is both diploid (2n = 16) and tetraploid (2n = 32).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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