Research on the biology of Echinacea pallida Nutt. and Echinacea purpurea (L.) Moench (II)
AbstractIn the second year of vegetation, after emergence, Echinacea pallida Nutt. and Echinacea purpurea (L.) Moench, form a leaf rosette and the first floral shoots appear in June. Plant vigour is significantly higher in Echinacea purpurea than in E. pallida, saved for roots. E. pallida is tetraploid, 2n=4x=44 chromosomes, of small size, between 5,87 and 3,04 microns, relatively easy to individualize by their shape and size.
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