Pretty sure golden sansam, blindweed and mountain silversage are pre-outland herbs that just happen to also spawn in outland.
I think you'd have more luck finding them in azeroth.
Arthas' tears always seemed so useless compared to the other herbs, always had so many of it and nothing useful to make from them. But good for leveling for sure. There are certain criteria for their spawn locations that would help you find them.
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