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 4.7 m The lower trunk is decumbent and rhizomatous, while the upper trunk is upright and palm-like. This pachycaul trunk is up to 40 cm thick. At the top is a rosette of huge leaves, the blade, or lamina of which is up to 115 cm long by up to 184 cm (six feet) in width. The stalk, or petiole is 2.4 m in length and 8 to 10 cm in thickness. These huge leaves emerge from a bud up to 2 ft long by up to 16 in 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 2.7 m in height. The bud scales covering the terminal bud are up to 39 cm in length by up to 7.5 cm (three inches) wide, the largest of any known plant.