Table 3.

A listing of the percentages of correct responses for 6 plant identification apps across 55 commonly observed tree species in New Jersey forests and landscapes. Percentages are means of 4 images for each species for bark and leaf. Combined percentage values are means of 8 observations for bark and leaf combined. PictureThis* and Plant Identification* percentages have been adjusted from their respective percentages by lowering the photo count by the number of photos for which the apps failed to make any identification (1 and 47 photos, respectively).

Genus identificationSpecies identification
AppCombinedBarkLeafCombinedBarkLeaf
PictureThis81.36%65.45%97.27%67.84%51.82%83.86%
iNaturalist70.23%48.18%92.27%50.68%31.82%69.55%
Plant Identification63.86%40.00%87.73%44.09%25.00%63.18%
PlantNet60.00%34.55%85.45%36.36%17.27%55.45%
LeafSnap59.09%32.27%85.91%35.11%14.77%55.45%
PlantSnap36.59%1.36%71.82%20.45%0.00%40.91%
PictureThis*81.55%65.75%97.27%67.54%52.05%82.95%
Plant Identification*71.50%49.16%90.19%49.36%30.73%64.95%
Genus suggestionsSpecies suggestions
AppCombinedBarkLeafCombinedBarkLeaf
PictureThis81.36%65.45%97.27%67.84%52.27%84.32%
iNaturalist89.55%79.55%99.55%83.41%70.91%95.91%
Plant Identification66.59%41.36%91.82%50.23%27.27%73.18%
PlantNet88.41%79.55%97.27%70.68%54.55%86.82%
LeafSnap88.86%79.55%98.18%72.73%56.82%88.64%
PlantSnap46.36%2.27%90.45%39.55%0.45%78.64%
PictureThis*81.55%65.75%97.27%68.00%52.51%83.41%
Plant Identification*74.55%50.84%94.39%56.23%33.52%75.23%