https://wccftech.com/metal-flowers-horizon-forbidden-west/

As Aloy ventures westward in Horizon Forbidden West, there are bound to be more than a few checkpoints and blocked-off areas that will prevent the players from exploring everything that the light touches. One common hindrance is waist-high Metal Flowers that look like metal cones when they're not deployed. These Metal Flowers often lock away side paths and treasure caches, so here's how to take care of those pesky Metal Flowers in Horizon Forbidden West.

First of all, it's important to note that clearing out the Metal Flowers, much like the majority of Aloy's equipment and utility upgrades, comes by way of the story and there's only one single trophy in the entirety of Horizon Forbidden West that might be missable and not obtainable in a single playthrough (as long as you're scanning every machine you come across, you won't have to worry).