Is it poisonous?

Mini game

Is it poisonous?

A real specimen from the dataset. Make your call, then see what the tree says.

Score
0 / 0
Streak
0
Best
0

Specimen

cap-shape
—
cap-surface
—
cap-color
—
bruises
—
odor
—
gill-attachment
—
gill-spacing
—
gill-size
—
gill-color
—
stalk-shape
—
stalk-root
—
stalk-surface-above-ring
—
stalk-surface-below-ring
—
stalk-color-above-ring
—
stalk-color-below-ring
—
veil-type
—
veil-color
—
ring-number
—
ring-type
—
spore-print-color
—
population
—
habitat
—
Keys: E · P · N
The whole tree · 8,124 training specimens, 0 misclassified
  • odor?8,124 specimens
    • nonespore-print-color?3,528 specimens
      • brownedible1,344 specimens
      • blackedible1,296 specimens
      • whitehabitat?624 specimens
        • grassesedible288 specimens
        • wasteedible192 specimens
        • leavescap-color?64 specimens
          • cinnamonedible24 specimens
          • brownedible24 specimens
          • whitepoisonous8 specimens
          • yellowpoisonous8 specimens
        • woodsgill-size?40 specimens
          • narrowpoisonous32 specimens
          • broadedible8 specimens
        • pathsedible40 specimens
      • greenpoisonous72 specimens
      • chocolateedible48 specimens
      • orangeedible48 specimens
      • yellowedible48 specimens
      • buffedible48 specimens
    • foulpoisonous2,160 specimens
    • fishypoisonous576 specimens
    • spicypoisonous576 specimens
    • almondedible400 specimens
    • aniseedible400 specimens
    • pungentpoisonous256 specimens
    • creosotepoisonous192 specimens
    • mustypoisonous36 specimens

A toy trained on 23 species of Agaricus and Lepiota from a 1981 field guide. It cannot tell you whether the mushroom in your hand is safe — please don't use it for real foraging.

How to play

You get a real specimen's 22 attributes. Decide whether it's edible or poisonous.

Press E or P (or tap a button) to make your call. Then the decision tree lights up the path it took to its verdict; press N for the next specimen.

The tree was trained on all 8,124 specimens and gets every one of them right, so its path tells you which attributes to look at first.

How it works