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For the version in Plants vs. Zombies: Endless Edition, see Oxygen Algae.

Oxygen Algae (氧气藻; pinyin: yǎngqì zǎo) was a plant and an environment modifier in Plants vs. Zombies Online. It was an aquatic plant, and as such can only be planted underwater.

Since most plants cannot be planted underwater, the Oxygen Algae must be used. When planted, the player will be able to plant any other plant in a cross-shaped area but can also upgrade the oxygen range by spending sun on it.

About[]

Oxygen Algae was the first plant obtained in the East Sea Dragon Palace. It released oxygen in a cross shape around it to let land plants survive in an aquatic environment. If eaten the surrounding plants would slowly take damage until either defeated or until another Oxygen Algae is planted in a nearby vicinity.

It also had a meter below it with 3 sections, which was used to show the level of Oxygen Algae. The player could click on the Oxygen Algae to level it up by spending some sun.

  • The first level costed 75 sun and made the oxygen-supplying range become 3x3.
  • The second level costed 125 sun and made the oxygen-supplying range become a diamond shape.
  • The third level costed 200 sun and made the oxygen-supplying range become 5x5.

Origins[]

Oxygen AlgaeEE

Oxygen Algae is based on the plant of the same name from Plants vs. Zombies: Endless Edition, who in turn was based on kelp, large brown algae seaweeds that make up the order Laminariales.

Its appearance could additionally be based on the bubble algae (Valonia ventricosa), a species of green algae found in many oceans throughout the world in tropical and subtropical regions and is one of the largest unicellular organisms on earth.

Almanac entry[]

氧气藻

水中不可或缺的重要植物
能提供必备氧气

塔防:
给局部地区进行供氧,以种植陆地植物,保护范围会随着等级提升而增大

技能: 无
消耗阳光: 50
伤害: 无
冷却时间: 较短

    In English: Oxygen Algae

    Necessary underwater, a very important plant.
    Provides essential oxygen.

    Tower defense:
    Supplies oxygen to surrounding area, allowing land plants to be planted, range of oxygenated area will increase as it is leveled up.

    Skills: None
    Sun cost: 50

    Damage: None
    Recharge: Fast

Plant Food effect[]

Its Plant Food ability was to heal all plants around it to their maximum health.

Gallery[]

Trivia[]

  • Algae is actually neither plant, animal, nor fungi. Algae is usually a single-celled organism, however, multi-cellular algae are not unknown to exist.
  • It was the first plant in Plants vs. Zombies Online to be upgradable during the level without the help of a seed packet.
  • It could not be upgraded from the Greenhouse.
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Roof Battle Cabbage-pult · Flower Pot · Kernel-pult · Coffee Bean · Garlic · Umbrella Leaf · Marigold · Melon-pult
Fight the Sea Demons Oxygen Algae · Sea Starfruit · Bramble Sea Grass
Brave the Dragon's Palace Water Gun Grass
Upgrades Gatling Pea · Twin Sunflower · Gloom-shroom · Cattail · Winter Melon · Gold Magnet · Spikerock · Cob Cannon
Others Imitater · Explode-o-nut · Giant Wall-nut · Electric Anemone · Strong Cauliflower · Machine Gun Pomegranate · Carrotillery · Oak Archer · Ghost Pepper · Laser Bean · Dandelion · Snapdragon · Bonk Choy
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Normal Peashooter · Sunflower · Cherry Bomb · Wall-nut · Potato Mine · Chomper · Repeater · Puff-shroom · Scaredy-shroom · Snow Pea · Sun-shroom · Fume-shroom · Grave Buster · Lily Pad · Squash · Spikeweed · Tangle Kelp · Torchwood · Sea-shroom · Jalapeno · Coffee Bean · Tall-nut · Pumpkin · Magnet-shroom · Blover · Melon-pult · Cactus
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>Normal Peashooter · Sunflower · Aspearagus · Wall-nut · Cherry Bomb · Popcorn · Beet · Snow Pea · Jalapeño · Magnet Plant · Flaming Pea · Shamrock · Bamboo Shoot · Repeater · Chilly Pepper · Twin Sunflower
VIPs Sweet Pea · Beeshooter · Hard-nut · Acespearagus · Power Flower · Beetboxer · Ice Queen Pea · Shamrockstar · Bamboom
Others Trees
Plants vs. Zombies 2
Player's House Peashooter · Sunflower · Wall-nut · Potato Mine · Cabbage-pult
Ancient Egypt Bloomerang · Iceberg Lettuce · Grave Buster · Bonk Choy · Repeater · Twin Sunflower
Pirate Seas Kernel-pult · Snapdragon · Spikeweed · Spring Bean · Coconut Cannon · Threepeater · Spikerock · Cherry Bomb
Wild West Split Pea · Chili Bean · Pea Pod · Lightning Reed · Melon-pult · Tall-nut · Winter Melon
Frostbite Caves Hot Potato · Pepper-pult · Chard Guard · Stunion · Rotobaga
Lost City Red Stinger · A.K.E.E. · Endurian · Stallia · Gold Leaf
Far Future Laser Bean · Blover · Citron · E.M.Peach · Infi-nut · Magnifying Grass · Tile Turnip
Dark Ages Sun-shroom · Puff-shroom · Fume-shroom · Sun Bean · Magnet-shroom
Neon Mixtape Tour Phat Beet · Celery Stalker · Thyme Warp · Garlic · Spore-shroom · Intensive Carrot
Jurassic Marsh Primal Peashooter · Primal Wall-nut · Perfume-shroom · Primal Sunflower · Primal Potato Mine
Big Wave Beach Lily Pad · Tangle Kelp · Bowling Bulb · Guacodile · Banana Launcher
Modern Day Moonflower · Nightshade · Shadow-shroom · Dusk Lobber · Grimrose
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Money Snow Pea · Power Lily · Imitater · Chomper · Toadstool · Strawburst · Cactus · Electric Blueberry · Jack O' Lantern · Grapeshot · Cold Snapdragon · Escape Root · Gold Bloom · Wasabi Whip · Apple Mortar · Witch Hazel · Parsnip · Missile Toe · Caulipower · Electric Peashooter · Holly Barrier
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Seed packets Torchwood · Starfruit · Dandelion · Blooming Heart · Bombegranate · Explode-O-Nut · Aloe · Hot Date · Solar Tomato · Enlighten-mint · Shadow Peashooter · Goo Peashooter · Sling Pea · Snap Pea · Zoybean Pod · Electrici-tea · Dazey Chain · Blastberry Vine · Pokra · Imp Pear · Pyre Vine · Pumpkin · Ice Bloom · Dartichoke · Ultomato · Gumnut · Shine Vine · Tumbleweed · Olive Pit · Puffball · Explode-o-Vine · Murkadamia Nut · Turkey-pult · Headbutter Lettuce · Boingsetta · Stickybomb Rice · Hocus Crocus · Gloom Vine · Draftodil · Boom Balloon Flower · Pea Vine · Inferno · Solar Sage · Power Vine · Noctarine · Heath Seeker · Iceweed · Tiger Grass · Teleportato Mine · Blockoli · Buttercup · Bramble Bush · Rhubarbarian · Mega Gatling Pea · Levitater · Tomb Tangler · Vamporcini · Meteor Flower · Chilly Pepper · Bun Chi · Bzzz Button · BoomBerry · MayBee · SeaFlora · Scaredy-shroom · Bamboo Spartan · Sundew Tangler · Bean Sprout · Nightcap · Cran Jelly · Bud'uh Boom · Ice-shroom · Dragon Bruit · Electric Peel
Others Marigold
Plants vs. Zombies 2 (Chinese version)
Ancient Egypt Peashooter · Sunflower · Wall-nut · Cabbage-pult · Bloomerang · Iceberg Lettuce · Grave Buster · Bonk Choy · Repeater · Twin Sunflower · Snow Pea · Cherry Bomb · Torchwood
Pirate Seas Kernel-pult · Snapdragon · Power Lily · Spikeweed · Spring Bean · Coconut Cannon · Spikerock · Lightning Reed · Tall-nut
Wild West Threepeater · Squash · Split Pea · Chili Bean · Jalapeno · Pea Pod · Melon-pult · Winter Melon · Imitater
Kongfu World Resistant Radish · Fire Gourd · Heavenly Peach · Bamboo Shoot
Far Future Laser Bean · Blover · Citron · E.M.Peach · Infi-nut · Magnifying Grass · Tile Turnip · Starfruit
Dark Ages Hypno-shroom · Sun-shroom · Puff-shroom · Fume-shroom · Sun Bean · Pea-nut · Magnet-shroom · Oak Archer · Coffee Bean · Plantern
Big Wave Beach Acid Lemon · Lotus Pod · Lily Pad · Bowling Bulb · Banana Launcher · Guacodile · Tangle Kelp · Homing Thistle
Frostbite Caves Hurrikale · Fire Peashooter · Hot Potato · Pepper-pult · Chard Guard · Stunion · Rafflesia · Whirlwind Acorn
Sky City Rotobaga · Loquat · Asparagus · Saucer · Horsebean · Groundcherry · Anthurium · Pineapple
Lost City Lava Guava · Red Stinger · A.K.E.E. · Stallia · Gold Leaf · Toadstool · Jackfruit
Neon Mixtape Tour Morning Glory · Phat Beet · Thyme Warp · Celery Stalker · Spore-shroom · Garlic · Intensive Carrot · Cactus
Jurassic Marsh Primal Peashooter · Primal Wall-nut · Perfume-shroom · Primal Sunflower · Primal Potato Mine · Primal Rafflesia · Dino-Roar Grass · Timid Thorns · Sugarcane Master
Modern Day Shadow-shroom · Caulipower · Moonflower · Grimrose · Nightshade · Dusk Lobber · Blooming Heart
Steam Age Gold Bloom · Flat-shroom · Maypop Mechanic · Lotus Shooter · Wind-Blowing Vanilla · Lily of Pharmacy · Mulberry Blaster
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Age
Aloe · Bearberry Mortar · Wax Gourd Guard · Oily Olive · Jeweler Pomegranate · Dartichoke
Heian Age Dripping Diphylleia · Stephania · Tupistra‎ Stalker · Dendrobium Windbreak · Chef Cypripedium‎‎ · Boophone Geigi‎
Fairytale Forest Ents · Heath Seeker · Hat Mushroom · Hocus Crocus · Princess Spring Grass · Bamboo Trooper
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Others Potato Mine · Flower Pot · 8-Bit Peashooter · Tactical Cuke
Hero Plants P-Mech Assembler - Flamestar
Removed Rotten Red
Plants vs. Zombies Online
Player's House Sunflower · Peashooter · Wall-nut · Potato Mine
Qin Shi Huang Mausoleum Bruce Bamboo · Carrot Rocket · Pomegranate · Dandelion · Venus Flytrap · Wax Gourd · Sod
Ancient Egypt Bloomerang · Bonk Choy · Grave Buster · Iceberg Lettuce · Cabbage-pult
Pirate Seas Snapdragon · Spikeweed · Spring Bean · Kernel-pult · Coconut Cannon · Narcissus · Endurian · Spikerock · Pineapple-pult · Threepeater
Far Future Laser Bean · Blover · Citron · E.M.Peach · Tile Turnip · Ganoderma · Banana Tree · Nitro-shroom · Infi-nut · Magnifying Grass
East Sea Dragon Palace Oxygen Algae · Garlic · Bubble Flower · Electric Sea Pine
Upgrades Twin Sunflower · Repeater
VIPs Winter Melon
Power Ups Cherry Bomb · Jalapeno
Premium Squash · Snow Pea · Tall-nut
Adventure Mode only Magic Vine · Split Pea · Chili Bean · Lightning Reed · Pea Pod · Melon-pult · Starfruit · Chomper · Fire Peashooter · Cattail · Rose Swordfighter · Clivia · Sap-fling · Acid Lemon · Magic-shroom · Ghost Pepper · Guacodile · Hurrikale · Plantern · Oak Archer · Homing Thistle · Pepper-pult · Resistant Radish · Toadstool · Blooming Heart · Red Stinger · Electric Blueberry · A.K.E.E. · Moonflower · Agave · Asparagus · Pumpkin Witch · Mine Fruit · Sea Anemone · Lychee Drill · Sea Starfruit
Plants vs. Zombies 3
Neighborville Sunflower · Wall-Nut · Bamboo Shoots · Peashooter · Bonk Choy
Lost Keys Lake Lily Pad · Tangle Kelp · Squash
Mt. Quesogrande Chili Bean · Silversword · Cabbage-Pult
Power-Ups Grapes of Wrath · Chilly Pepper · Jalapeño · Cherry Bomb · Blover
Pre-2021 Puff-Shroom · Buttercup · Garlic · Potato Mine · Pushywillow · Chard Guard · Spikeweed · Kernel-Pult · Caramel Popcorn · Lightning Reed · Melon-Pult · Shuffle Truffle · Blockbuster · Butternut Squash · Ragweed · Sawgrass · Fire Peashooter · Pine Needler · Snow Pea · Night Cap · Aloe Vera · Sweet Potato · Hydrangea · Dogwood · Chomper · Flak Seed · Gravitree · Gloom-Shroom · Lemon-Aid · Starfruit · Snapdragon · Fairy Ring Mushroom · Kalestorm · Star Tree · Magic Beans
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