Ludwigia peploides vs Portulaca oleracea
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
Ludwigia peploides
Portulaca oleracea
How often our model gets it wrong measured, not estimated
| When the plant was | The model said | How often |
|---|---|---|
| Ludwigia peploides | Portulaca oleracea | 3 of 19 (16%) |
The confusion runs one way only. The model mistakes Ludwigia peploides for Portulaca oleracea, but not the reverse.
Measured on 38,299 openly licensed, research-grade photographs. Full method and dataset.
What actually separates themon the record
| Family | Onagraceae versus Portulacaceae. Different families, which is a real separation. |
|---|---|
| Genus | Ludwigia versus Portulaca. |
| Flowering | Peaks in July versus July. Timing does not separate them. (n = 1,195 and 2,198.) |
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.