Dried White Horsenettle is a world object in the Fallout: New Vegas add-on Old World Blues.
Gameplay
The seeds come in Seed Packages and are used by the biological research station during the quest Field Research to clone and plant seeds in The Sink. The White Horsenettle will be grown in the Sink three in-game days after giving the seeds to the biological research station.
The dried seeds are in three separate packs and can be collected in any order during the quest. The seed packages are activators and aren't added as seeds to the player's inventory. Instead, they are converted into dried versions of 11 miscellaneous items in total when activated.
Locations
The pack of seeds is found north of the X-22 botanical garden, across the booby-trapped pipe and near a spore plant.