Sorry about quality of photographs. :( I was given these two identical plants by a neighbouring former who said he found them growing soiless on top of a limestone boulder. There were roots on each plants but the depth of roots were the same depth as blotting paper! I planted them into a soiless mix of lime dust and water. The resultant mix was just like concrete but they're growing!!! and going to flower! Anyone know what plant they are? I looked up alpine sites, etc but can't find anything close.