identify tree type

Question: Trying a second time....
Can you please identify this tree in my back yard as shown in the 3 attached pictures (actually there are 3 trees there)?  I believe they are American Persimmon trees, but the fruit that one of these 3 trees produced and dropped over this past month (mostly first 3 weeks of July) is unlike the other native persimmons that I'm familiar that drop fruit in October time frame and are orange in color and somewhat larger.  These fruit here that I found on the ground beneath the tree are dark purple (some were light green) and about the size of an acorn. I did not attempt to eat any. Only one of these 3 trees produces fruit.  I ordered and planted these three trees in my back yard in Highland about 20 years ago from a Virginia tree farm, and I always thought that they were native persimmons, but now I'm not sure.  Can you help?

responder: Answered by theHome and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied August 02, 2024, 1:22 PM EDT
response: Those do look like persimmons trees and those are unripened fruits. The intense and prolonged heat stress and lack of rain is causing excess fruits to drop early.   Christine

responder: The Question Asker Replied August 03, 2024, 1:00 PM EDT
response: Christine, Thanks.  The one female tree that produces fruit always drops fruit in July, never in the fall, even in wet years.  The fruit I find on the ground is always either firm green (if unripe) or soft purple; I've never seen normal orange fruit from this tree for some reason.  It has produced fruit only the last 5 years or so. Richard   On Fri, Aug 2, 2024 at 1:23 PM Ask Extension <<personal data hidden>> wrote:

responder: Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied August 05, 2024, 4:52 PM EDT
response: Fruit drop in persimmons can also be triggered by excessive fertilization...is the turfgrass within the root zone of the trees fertilized one or more times a year? (A recommended practice for the turf, but perhaps interfering with fruit development for the trees, especially if the fertilizer is heavy in nitrogen, which turf fertilizers usually are.) Excessive bearing (ripening lots of fruit) can also cause fruit trees to self-thin and drop the surplus fruits it cannot support well before they ripen, though in that situation we'd expect that at least a few would have remained to ripen normally. If branch growth is near or exceeding a foot of growth per year, then the plants may be so vigorous that they are directing energy towards canopy growth at the expense of fruiting.  Since you mentioned that the other two trees don't fruit at all, do you know if they are male or female? American Persimmon is dioecious (produces male and female flowers on separate plants), and if any female trees do become self-fruitful and begin to ripen fruits without pollination (called parthenocarpic/parthenocarpy), those fruits will probably fall early because they contain infertile seeds or no seeds. (There might be a couple cultivars of American Persimmon which can fruit normally without pollination, but wild trees usually do not.)  Miri