Gunnera magnifica
Gunnera magnifica, commonly called hoja de pantano, is a large herbaceous shrub or tree-like plant native to the  montane rainforests of the Colombian Andes in Caldas Province. It can grow as high as  The lower trunk is decumbent and rhizomatous, while the upper trunk is upright and palm-like. This pachycaul trunk is up to  thick. At the top is a rosette of huge leaves, the blade, or lamina of which is up to  long by up to 184 cm (six feet) in width. The stalk, or petiole is  in length and  in thickness. These huge leaves emerge from a bud up to  long by up to  wide; the largest leaf bud of any known plant. The panicle of red, dimerous (two sepals, two petals, two stamens, and a two styled pistel)  flowers, panicle and pedicel combined, is up to  in height. The bud scales covering the terminal bud are up to  in length by up to 7.5 cm (three inches) wide, the largest of any known plant. References

magnifica