Both Clarkia

Clarkia amoena vs Clarkia rubicunda

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, 7 times. We publish the rate, and then we tell you what actually separates them.

Confused 7x by our model Same genus Clarkia Method published

Side by sidefigs. a and b

Clarkia amoena, photographed by Alex
fig. a Alex, CC BY 4.0

Clarkia amoena

Farewell-To-Spring
Clarkia rubicunda, photographed by LJ Moore-McClelland
fig. b LJ Moore-McClelland, CC BY 4.0

Clarkia rubicunda

ruby chalice clarkia

How often our model gets it wrong measured, not estimated

When the plant was The model said How often
Clarkia amoena Clarkia rubicunda 7 of 20 (35%)

The confusion runs one way only. The model mistakes Clarkia amoena for Clarkia rubicunda, but not the reverse.

Measured on 38,299 openly licensed, research-grade photographs. Full method and dataset.

What actually separates themon the record

Family Both Onagraceae. The family does not separate them.
Genus Both Clarkia. Congeners, which is why this is hard.
Flowering Peaks in July versus June. If the plant is in flower, timing helps. (n = 1,548 and 2,467.)

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