oops, wrong forum, meant for palms forum

To take out the location-loaded terms 'native' and 'cultivated', I think what you're trying to ask is, "can hybrids occur between species from different continents"; the answer is yes, provided the species are closely related enough. There are plenty of examples. In Prunus, the hybrid between P. avium (Europe) and P. emarginata (N America) is known, recently named Prunus à pugetensis. I'd doubt that P. serotina could cross with P. avium though, as they are in different sections of the genus (sect. Padus, and sect. Cerasus, respectively). Resin

Hi Steve et al, (is that right by the way, or did I just pull that out of a hat?) I had no idea that I was bringing up the question at all in my remark about A. tuberosa. I was only mentioning that I heard that A. tuberosa was not as toxic as some of the other popular milkweeds and that I had never been able to get it to grow anyway so I gave up on it years ago. I wondered whether you had it growing yourself or whether you might have been confusing it with curassavica which I have all over the place. But the question you raise is interesting though I have no knowledge of the subject and never thought about it until you mentioned it above. At this point I wouldn't lose any sleep over it at all since it seems to be used by so many people successfully with monarchs for years. But monarchs are not as easy to rear for me and I think they are susceptible to so many forms of predation that I often leave them outside when I find them because I hate to see things die. But if there is truth to the allegations about native vs. non-native I would definitely like to know. I grow two species of native milkweed but to be honest with you they are a real pain because they appear too late for the spring migration and often go dormant before the fall migration. So what good is that. So I just have at least five or so species and let the adult butterflies pick out their own choice. They definitely choose the physocarpa and curassavica over any of the others. As far as the notion that A. tuberosa might be invasive out here in CA, I seriously doubt it because tuberosa likes rich and well-drained soil and the only place you would find that out here is in bags at the local nursery and it's quite expensive. I doubt most tuberosas could afford it. On top of that tuberosa does not do well in pots or so the mail order catalog indicates. At least it never worked for me.

RE: Raspberry x Blackberry hybrids clip this post email this post what is this? see most clipped and recent clippings * Posted by farmfreedom (My Page) on Tue, Dec 15, 09 at 14:31 Yes you can cross: raspberries , blackberries , mulberries , wineberries ,dewberries , tayberries , boisenberries ,loganberries , salmonberries ,black caps, can all crossbreed . There is even a "white blackberry" developed by Luther Burbank The Nothernmost most cold resistant fruits in the world are berries. We should be using the most cold resistant fruits in the world to extend the range of all berries that they can crossbreed with . o RE: Raspberry x Blacberry hybrids clip this post email this post what is this? see most clipped and recent clippings * Posted by henry_kuska z5 OH (kuska@neo.rr.com) on Thu, Dec 17, 09 at 14:34 See: http://www.rosehybridizers.org/forum/message.php?topid=2986 for additional "possibilities". Here is a link that might be useful: link for above o RE: Raspberry x Blacberry hybrids clip this post email this post what is this? see most clipped and recent clippings * Posted by tugbrethil Sunset 13, USDA 9 (My Page) on Sat, Jan 16, 10 at 1:27 Wait a minute, farmfreedom! All of the brambles (blackberries, raspberries, etc.) are members of the rose family (Rosaceae), while mulberries are members of the Moraceae, along with figs and the rare succulent Dorstenia. There is virtually no structural similarity between the families: are you sure that mulberries and blackberries will hybridize? Kevin : ) o RE: Raspberry x Blacberry hybrids clip this post email this post what is this? see most clipped and recent clippings * Posted by farmfreedom (My Page) on Mon, Feb 1, 10 at 16:30 I believe if you look up the "TAY berry " or the "Logan berry " you will find that that is the cross breed. Also If this was not true How Did Luther Burbank develop the " White Blackberry " . He is also said to Have crossed Strawberries and Blackberries which I would like to see if anyone has a picture . The Nothernmost most cold resistant fruits in the world are berries. We should be using the most cold resistant fruits in the world to extend the range of all berries that they can crossbreed with . 1. Will native strawberries (F. vesca or F. virginiana) cross-pollinate (freely, open-pollinate) with F. ananassa or even F. moschata? I know that half of the gene-pool comprising F. ananassa is F. virginiana, but I'm not sure if this was 'forced' under controlled conditions not present under normal circumstances - just like when you force American persimmon (var. virginiana only) to hybridize with D. kaki (with much effort)? With strawberries it depends on if they are diploid, triploid, quadriploid, etc. 2.Native plums (P. angustifolia; P. americana; P. maritima; P. alleghaniensis; P. pumilla var. besseyi) with European plum (P. domestica) or with the Asian plums (including P. tomentosa). Someone said the natives will not hybridize with the European species but will with (?all)Asian species. Plums,beach plums, apriocots, peaches (including nectarines), almonds and I believe sand cherries can all cross breed with each other , but not with real cherries . 3. The wild native mints (or plants in the mint family) with the Eurasian mint types. 4. The native garlic spp. with the Eurasian garlic spp. garlic can cross with onions( shallots) and other garlic but neither can cross with leaks. 5. Are there natural native crab apple x European apple hyrbids? Yes 6. Other then the supposed Amelanchier canadensis x A. laevis alleged hybrid resulting in A. x grandifolia, will the various Amelanchier spp. hybridize with one another - i.e. A. alnifolia, A. canadensis, A. humilis, etc. with one another? 7. Will the various hickories hybridize with one another, such as pecan x shagbark x shellbark, or are these either extremely rare hybridizations or ones requiring human intervention? Luther Burbank crossed them and crossed the heart nut and all the walnuts . he was trying to cross the walnut with the pecan when he died. 8. Will the various native plums hybridize with one another? - I think several will with A. americana, but not sure if those that would will hybridize with one another. Probably 9. Will native currants and gooseberries hybridize with their European counterparts? And will native currants/gooseberries hybridize freely among themselves? currants X gooseberries are called jostaberries 10. Will native raspberries and blackberries from the north east hybridize with those (Rubus) from the western states? Same question for native blueberries/huckleberries from the east and western coast? Why not ?