I want a parent plant for plums. The genus Prunus contains many trees other than plums, though, so I need to narrow down these species.

Prunus domestica is the main plum species.

I also see some plums in our database under two other species, such as:

Mirabelle Plum (Prunus domestica subsp. insititia 'Nancy')
Plum (Prunus cerasifera Gypsy®)

And we have some cultivars that are simply listed with just the genus, like:

Plum (Prunus BlackIce®)

Are the insititia and cerasifera species valid? Should I make the parent plant cover all 3 of these species? And the ones that are on the genus level only, should we endeavor to find the right species for them and edit them?

P. cerasifera and P. domestica are accepted names, but P. insititia is now a synonym for P. domestica subsp. insititia. I'll edit the entries with that name.

Thank you zuzu

I setup The Plums Database and the parent plant contains all the matching species: Plums (Prunus umbellata)

Looks good. Do all plum trees have white blooms? No pinks?

I removed white from the list.

If we're looking for fruit trees I'd eliminate Prunus cerasifera, these are mostly ornamental trees.

Delete:
self fertile

But are we looking only for fruit trees? If I had a flowering plum that didn't bear fruit, I'd still want to look for it in the Plum Database.

Yeah, I was thinking we'd want to cover both flowering and fruiting varieties. I'll delete self fertile.

OK.

Shouldn't the Prunus salicina (Japanese) cultivars be included?

Thanks Kent, I've added them.

Probably should also add these species:

Prunus salicina var. pubipes
Prunus salicina var. salicina
Prunus americana
Prunus angustifolia
Prunus eremophila
Prunus geniculata
Prunus gracilis
Prunus havardii
Prunus hortulana
Prunus maritima
Prunus mexicana
Prunus murrayana
Prunus nigra
Prunus rivularis
Prunus subcordata
Prunus umbellata

and any cultivars associated with them.

With the exception of the first two (which are Japanese Plum varieties), those are just the North American species of plums. I don't know the Old World Prunus species well enough to say which are plums, which are cherries, etc.

Might also want to remove the checkboxes for Water Preferences: Mesic and Underground Structures: Taproot.

Thank so Kent, I will do these!