Yeah, you can tell by the leaves.
Hmm, it says that the flowers are not purple for c. annum. What about purple varieties that are claimed to be c. annum?
3
Corolla purple . . . . . . continue to 4
Corolla white or greenish-white . . . . . . continue to 5
4
Flowers solitary . . . . . . C. annuum
Flowers two or more at each node . . . . . . C. chinense
I haven't seen an example of a C. chinense plant with purple flowers as yet.
There is a longer variant of the table at http://faq.gardenweb...4837000364.html that deals with that case.
Using the longer table you will go through step 3 (corolla purple) and then to 4 (flowers solitary):
I don't though see the table as a comprehensive way of identifying a Capsicum species even among the domesticated 5. I have an example of a C. annuum that produces clusters of purple flowers. I can tell from the leaf structure, the basic flavour of the pods compared to other C. Annuum varieties and the calyx size that it is a C. annuum.
I have an example of an interspecific hybrid C. chinese with purple flowers. The pimenta da neyde. It's mixed with c. annum, but It has a lot of c. chinese characteristics. The fruit starts off purple and stays purple as well
Here is a pic (sorry I don't have one of the whole plant):
Oh ok.
I did think of that variety but didn't consider it to be a true C. chinense. I searched for photos of its flowers while I was drafting my prior post and found only one photo that was white with a purple tinge.
Do you have photos of the flowers?