Winged Kelp grows to a maximum length of 2m. The whole frond is brown and consists of a distinct midrib with wavy membranous lamina up to 7cm wide on either side. The frond is unbranched and tapers towards the end. The base has a short stipe arising from a rhizoidal holdfast. The stipe may bear several sporophylls which are club-shaped and up to 20 cm long and 5 cm broad which bear the spores.
Iodine is a chemical element with symbol I and atomic number 53. Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers. Iodine's relatively high atomic number, low toxicity, and ease of attachment to organic compounds have made it a part of many X-ray contrast materials in modern medicine. Iodine has only one stable isotope. A number of iodine radioisotopes are also used in medical applications.