The plant's exact identity is unknown to this day, since it went extinct in Roman times. It was a major cash crop of Cyrene, Libya, and even depicted on coins. It was used as seasoning, perfume, aphrodisiac, contraceptive and abortifacient.
The last specimen was supposedly given to Emperor Nero.
And what it was actually effective at. But the best way to convince a male dominated society that was important to make accessible was to convince them it made women horny.
When it just freed them of potentially serious consequences, like, a shit ton of women died a n childbirth until very recently. A one night stand could leave a women dead or shunned from her family with no source of income and a baby.
Reliable birth control would have been an absolute game changer.
It was also very valuable. The Roman government had restrictions on its harvest but there was a huge black market. The wealthy put fences around where it was growing but the fences were torn down by the public. It can't be grown artificially so the only way get it is though finding it in the wild. The public ultimately harvested it until there was nothing left.