Sesame - Botany. 1  Sesame is an annual plant growing 50 to 100 cm (1.6 to 3.3 ft) tall, with opposite leaves 4 to 14 cm (1.6 to 5.5 in) long with an entire margin; they are broad lanceolate, to 5 cm (2 in) broad, at the base of the plant, narrowing to just 1 cm (0.4 in) broad on the flowering stem.
Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, and other items for which sturdiness is required. It is also popularly used by artists as a painting surface, typically stretched across a wooden frame.
They are much easier to use and to clean up after. Canvas is elastic medium,mostly used for oil and acrylic painting,but you can use pigments with gum Arabic also.Oil demands more drying time,acrylic dries faster,and if you are starter i recommend you acrylic. Acrylic and oil paint. I would suggest acrylic because it is easier for beginners, dries much faster, and you can paint over it. oils or acrylics are perfect for canvas. Try this site, some real good tips! http://painting.about.com/od/paintingfor...