Cornaceae and Lauraceae

Cornus mas vs Lindera benzoin

These two are not on this page because a keyword tool suggested them. They are here because our own identification model genuinely mistook one for the other, on real photographs, 3 times. We publish the rate, and then we tell you what actually separates them.

Confused 3x by our model Method published

Side by sidefigs. a and b

Cornus mas, photographed by Yann Kemper
fig. a Yann Kemper, CC0 1.0

Cornus mas

Cornelian cherry
Lindera benzoin, photographed by Lynn Harper
fig. b Lynn Harper, CC0 1.0

Lindera benzoin

northern spicebush

How often our model gets it wrong measured, not estimated

When the plant was The model said How often
Cornus mas Lindera benzoin 3 of 20 (15%)

The confusion runs one way only. The model mistakes Cornus mas for Lindera benzoin, but not the reverse.

Measured on 38,949 openly licensed, research-grade photographs. Full method and dataset.

What actually separates themon the record

Family Cornaceae versus Lauraceae. Different families, which is a real separation.
Genus Cornus versus Lindera.
Flowering Peaks in March versus April. If the plant is in flower, timing helps. (n = 1,202 and 2,805.)

What we do not have yet: the diagnostic morphological character that a botanist would key on, from a source we can cite. We are not going to invent one. Until we have it, this page tells you the two are genuinely confusable, how often, and what the taxonomy and the flowering data do and do not settle.

Both recordsfull pages