≈ 20 semences
photo:
By User:Badagnani, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=19987617
By Jamain - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=43968943
By Laurascudder - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=22071338