PS

*dardar- - thistle (Fronzaroli 1969a: 276, 289, 299; Kogan 2011: 201; Kogan 2012: 234)

Akkadian
daddaru - an ill-smelling, thorny plant (CAD D 17, AHw. 148)
Hebrew
dardar - thistle (HALOT 230)
Syriac
dardrā - red star-thistle (LSyr. 166, SL 321)
Arabic
dardār- - elm (Lane 864)
Arabic
durdurin - thistle (Behnstedt 369)
a dialectal form (Yemen), the preservation of this root in classical language is doubtful
Geez
dader - thistle (CDG 136)
Geez
dandar - thistle (CDG 123)
Tigrinya
dander, dandär - thistle (TED 2130)
Amharic
dändär - thistle (AED 1804)