Release date 3 May 2018 (Update)
Members? No
Combat level 128
Always drops Big bones
This is what organic growth looks like!
Combat info
Hitpoints 115
Aggressive Yes
Poisonous Yes (8)
Max hit 16
Weakness Magic
Attack Styles
Melee (crush), Magic
Slayer icon Slayer info
Slayer level 1
Slayer XP 115
Category Moss giant
Assigned by
Vannaka chathead
Combat icon Combat stats
Attack icon Strength icon Defence icon Magic icon Ranged icon
130 100 100 90 1
Attack icon Aggressive stats
White dagger White scimitar White warhammer Magic icon Ranged icon
+0 +0 +0 +0 +0
Defence icon Defensive stats
White dagger White scimitar White warhammer Magic icon Ranged icon
+0 +0 +0 +0 +0
Other bonuses Immunities
Attack icon
Strength icon
Ranged Strength icon
Magic Damage icon
Poison hitsplat
Venom hitsplat
+33 +31 +0 +0% Not immune Not immune
Attack speed
Monster attack speed 4

Bryophyta, the Moss Giantess, is an ancient and mystical moss giant boss who can be found in her lair in the Varrock Sewers. Bryophyta's lair is located just north of where the moss giants reside in the sewers, accessible by the agility shortcut from the Edgeville Dungeon (51 Agility required) or through the Varrock Sewers.

In order to access Bryophyta's lair, the player must obtain a mossy key from a moss giant. Each mossy key permits for only one attempt, similar to accessing Obor's lair with a giant key.

Warning: If you die within the lair, there is absolutely no way for you to retrieve items lost on death!


In order to reach Bryophyta, players will need a knife or blade (to slash the web to get to the lair) if they are reaching her via the Varrock Sewers. Members with level 51 Agility can access an agility shortcut by Vannaka in the Edgeville Dungeon.

Unlike Obor's chambers (where he is confined in a small pit), players are immediately taken to Bryophytha's chambers, where she will attack them on sight - prior to entering the room, activate Protect from Magic.

Fighting Bryophyta

A player fighting Bryophyta.

She is also capable of poisoning players, starting at 8 damage, so it is recommended to bring some form of poison protection to cure her poison. Unlike Obor, she does not take protection prayers into account.

During the fight, she may summon three growthlings - they are fairly weak, but they must be killed, as Bryophyta is immune to all damage while they are alive. In order to finish them, an axe or secateurs must be used (not wielded) on them. If a player has forgotten either one of these items, they can grab a bronze axe from a pile of logs near her. She can only have one batch of growthlings in the chambers throughout the whole fight, but can summon more if the previous batch were killed off.



Item Quantity Rarity GE market price
Big bones Big bones 1 Always 265


Item Quantity Rarity GE market price
Rune med helm Rune med helm 1–2 Common 11,149–22,298
Rune full helm Rune full helm 1 Common 20,687
Rune longsword Rune longsword 1 Common 18,755
Rune sword Rune sword 1–2 Common 12,310–24,620
Rune chainbody Rune chainbody 1 Common 29,575
Rune plateskirt Rune plateskirt 1 Common 37,910
Rune platelegs Rune platelegs 1 Common 37,833
Adamant platebody Adamant platebody 5 (noted) Common 47,675
Rune sq shield Rune sq shield 1 Common 22,565
Battlestaff Battlestaff(m) 3 Uncommon 25,239


Item Quantity Rarity GE market price
Cosmic rune Cosmic rune 100 Common 14,800
Law rune Law rune 100 Common 22,500
Nature rune Nature rune 100 Common 23,100
Death rune Death rune 100 Common 25,700
Chaos rune Chaos rune 100; 200 Common 10,100–20,200
Blood rune Blood rune(m) 100 Common 29,300
Adamant arrow 5 Adamant arrow 100 Common 6,500


Item Quantity Rarity GE market price
Grimy guam leaf Grimy guam leaf(m) 1 Uncommon 11
Grimy marrentill Grimy marrentill(m) 1 Uncommon 16
Grimy ranarr weed Grimy ranarr weed(m) 1 Rare 7,607
Grimy cadantine Grimy cadantine(m) 1 Rare 1,413


Item Quantity Rarity GE market price
Herb seed 5 Tarromin seed(m) 1 Rare 7
Belladonna seed 5 Belladonna seed(m) 1 Rare 120
Limpwurt seed 5 Limpwurt seed(m) 1 Rare 148
Herb seed 5 Cadantine seed(m) 1 Rare 526
Jangerberry seed 5 Jangerberry seed(m) 1 Uncommon 2


Item Quantity Rarity GE market price
Coins 10000 Coins 8,000–10,000 Common Not sold
Steel bar Steel bar 25 Uncommon 14,275
Runite bar Runite bar 2 Uncommon 24,880
Uncut ruby Uncut ruby 5 (noted) Uncommon [1] 8,810
Uncut diamond Uncut diamond 5 (noted) Uncommon [1] 18,690
Mossy key Mossy key 1 Uncommon (1/16) Not sold
Strength potion(4) Strength potion(4) 15 Uncommon 2,880
Bryophyta's essence Bryophyta's essence(m) 1 Rare (1/118) 25,417
Long bone Long bone(m) 1 Rare (1/400) Not sold
Curved bone Curved bone(m) 1 Very rare (1/5,000) Not sold
Giant champion scroll Giant champion scroll(m) 1 Very rare (1/5,000) Not sold
  1. 1.0 1.1 Always dropped together.


  • Bryophyta is the scientific name for moss.
  • Bryophyta is the first free-to-play monster capable of poisoning.
  • Bryophyta's poison attack was forgotten to be put Free to Play.