Berberis nervosa vs Vaccinium ovatum
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.
Side by sidefigs. a and b
Berberis nervosa
Vaccinium ovatum
How often our model gets it wrong measured, not estimated
| When the plant was | The model said | How often |
|---|---|---|
| Berberis nervosa | Vaccinium ovatum | 3 of 20 (15%) |
The confusion runs one way only. The model mistakes Berberis nervosa for Vaccinium ovatum, but not the reverse.
Measured on 38,299 openly licensed, research-grade photographs. Full method and dataset.
What actually separates themon the record
| Family | Berberidaceae versus Ericaceae. Different families, which is a real separation. |
|---|---|
| Genus | Berberis versus Vaccinium. |
| Flowering | Peaks in April versus May. If the plant is in flower, timing helps. (n = 698 and 986.) |
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.