Their stems are typically flattened, almost leaf-like in appearance, with fewer or even no spines, such as the well-known Christmas cactus or Thanksgiving cactus (in the genus Schlumbergera). Cacti have a variety of uses: many species are used as ornamental plants, others are grown for fodder or forage, and others for food (particularly their fruit).
1 Car of Tomorrow, a car design used in NASCAR racing. 2  Cost of transport, an energy calculation. 3  Cotangent, a trigonometric function, written as cot.  Cotyledon, a significant part of the embryo within the seed of a plant.
Last Reviewed/Updated: 01/02/2014. A COTS item is an item sold in substantial quantities in the commercial marketplace and offered to the government in the same form that is available in the commercial marketplace, or with minor modifications. Federal contracts for COTS items are exempt from the E-Verify federal contractor rule. Federal contracts for food and agricultural products shipped as bulk cargo, but that otherwise would be considered COTS items, such as grains, oils and produce, are also exempt.