To get Duskstem in World of Warcraft: Dragonflight's The War Within expansion head into Hallowfall from Dornogal. A spooky zone that reminds many of Zangarmash and is a part of big plant life that covers this zone, along with Duskstem.
To collect Duskstem, you'll want to be on the level 80 quest, "Chew On That." Once you've accepted the quest, fly to Light's Blooming, a region at the edge of Hallowfall.
Duskstem grows from the tops of these tall, green plants. You're looking for thin, reddish-orange plants that sparkle like Herbalism nodes, usually springing from the middle of the greenery but sometimes on the outer edges as well.
Hop on your flying mount to reach these and enable you to farm them quickly. While Duskstem can spawn all over Hallowfall, Light's Blooming provides the most combined spawn points, which is important especially if you are on a highly populated server.
Be sure to note other players around you, as several of them are after Duskstem-one of the more valuable resources-and you want to be ready as soon as you see a node.
If you can't find Duskstem in Light's Blooming, don't worry and head to other places around Hallowfall. Though the spawn will be much lower, perhaps you will get a better chance of finding unclaimed nodes.
Lastly, don't forget to complete your quest "Chew On That" for the continuity of the The War Within storyline. Once you have collected enough of the said Duskstem, you will be able to turn in the quest and claim your reward.
Start the quest "Chew On That." To progress through the questline, you're going to have to get 20 Duskstem, which can be found in many locations within Hallowfall, Arathi. Bring it to Taerry Bilgestone when you have the required amount.
Completion rewards 40 Resonance Crystals-a very resourceful mineral used in the crafting or upgrading of items. It also rewards 200 reputation with Hallowfall Arathi, allowing new quests, vendors, and benefits.
Probably the most valuable reward is the Lamplighter Satchel. It may contain inside Resonance Crystals, Carved Harbinger Crests, Restored Coffer Keys, and even ilvl 400 green gear. These items are helpful for strengthening one's character and going further in the game.
This will be worth your while, especially if you haven't already started this quest. It's a nice addition to any player's journey in Hallowfall Arathi because of the rewards it gives.