From a gracious forum member, Maihuenia poeppigii cuttings, rooted in about 2.5 weeks:
Rick Rodich zone 4a. Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA
Looks like you are having good luck rooting those cuttings. They should do well for you.
From the High Desert Steppe
of the Great Basin and the Eastern
Escarpment of the Sierra Nevada Range
Located in Reno/Sparks,NV zone 6-7http://www.flickr.com/photos/sierrarainshadow/
John P Weiser
Looking good, Rick! I think maybe I should put my seedlings out for the summer, but it would mean totally replacing the soil to bring them in for winter (too many critters out there..).. I've very sceptical about them surviving winter here, but will try some day...
west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus http://urbanehillbillycanada.blogspot.com/
I have enough cuttings to try outside, too. (Not all were shown.) Every piece rooted. But I think it will be next winter for testing, not this coming one. Even my friend in northern Wisconsin, who seems to be able to grow anything, has problems with this one.