Hi... Guys and girls... I' presented a C. maxima type... This plants winning a mention in local exposition on Rosario, Argentina... a yellow rubber... I dude too if is upland or lowland variety but believe that a upland... Cordially regards, GG
Jan, Without seeing the plant, isn't it reasonable to conclude from the flower pic that this is probably an upland (dark lavender flowers) type compared to the lowland (pale to medium lavender flowers) type?
Obviously, from the second pic this is the shorter, upland version.