High Outcrossing Peas (Pisum Sativum)

[B. Copping]

... not familiar with that flower terminology... not sure what that actually means...

Carina = Keel
Alae = Wings
Vexillum = Standard, Banner

"crd" ... wing petals often absent, keel petals sometimes free.

One of the "Brac" mutants has no wing petals ...

[AndrewB]

crd might be an interesting avenue.

An alternate might be the k genotype.

These three accessions in the USDA have good pictures of the flowers and the wings are missing / fused with the keels and the keels seem to be open a bit. Dr. Marx was a crazy pea breeder!
https://www.fedcoseeds.com/seeds/articles/breeder_Marx.htm

W6 15381, Pisum sativum L. subsp. sativum, Marx 424
https://npgsweb.ars-grin.gov/gringlobal/ImgDisplay?id=1071332


W6 15105, Pisum sativum L. subsp. sativum, Marx 013
https://npgsweb.ars-grin.gov/gringlobal/ImgDisplay?id=1070177


W6 19039, Pisum sativum L. subsp. sativum, Marx 435 (this one says it has k, but the picture does not match)

[AndrewB]

W6 15494, Pisum sativum L. subsp. sativum, Marx 572

[Steph S]

Those are interesting flowers!  The Marx 572 is really pretty!  Looks open for business, that's for sure.