Smyrnium olusatrum, common name alexanders (or alisander), is an edible flowering plant of the family Apiaceae (Umbelliferae) which grows on waste ground and in hedges around the Mediterranean and Atlantic coastal regions of Europe. It was formerly widely grown as a pot herb, but is now appreciated mostly by foragers. Description Smyrnium olusatrum is a stout, glabrous (hairless) biennial growing to 150 cm (60 in) tall (exceptionally 180 cm), with a solid stem up to 22 mm in diameter, which becomes hollow and grooved with age.
Dysaphis est un genre d'insectes de l'ordre des hémiptères (les hémiptères sont caractérisés par leurs deux paires d'ailes dont l'une, en partie cornée, est transformée en hémiélytre), de la famille des Aphididae.
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