djasluni lujvo

x1 is a common onion/bulb onion/garden onion (Allium cepa) of variety/breed x2.

Allium cepa is the common onion. x2 could be (lo ka) red (xunre)/yellow (pelxu)/white (blabi)/young (citno)/small (cmalu).

In notes:

labdjasluni
s1 is a white onion (Allium cepa) of variety/strain s2.
peldjasluni
x1 is a yellow onion (Allium cepa) of variety/breed x2.
xunydjasluni
s1 is a red/purple onion (Allium cepa) of variety/strain s2.