The bamboos ( listen)
are evergreen perennial flowering plants
in the subfamily
Bambusoideae of the grass family Poaceae
. In bamboo, as in other grasses, the internodal regions of the stem
are usually hollow and the vascular bundles
in the cross section are scattered throughout the stem instead of in a cylindrical arrangement. The dicotyledonous woody xylem
is also absent. The absence of secondary growth
wood causes the stems of monocots
, including the palms
and large bamboos, to be columnar rather than tapering.
Bamboos include some of the fastest-growing plants in the world, due to a unique rhizome-dependent system. Certain species of bamboo can grow 91 cm (36 in) within a 24-hour period, at a rate of almost 4 cm (1.6 in) an hour (a growth around 1 mm every 90 seconds, or 1 inch every 40 minutes). Giant bamboos are the largest members of the grass family. Bamboos are of notable economic and cultural significance in South Asia, Southeast Asia and East Asia, being used for building materials, as a food source, and as a versatile raw product. Bamboo has a higher specific compressive strength than wood, brick, or concrete and a specific tensile strength that rivals steel.
The word bamboo comes from the Kannada term bambu ಬಂಬು, which was introduced to English through Indonesian and Malay.
Bambuseae (tropical woody bamboos)
Olyreae (herbaceous bamboos)
Arundinarieae (temperate woody bamboos)
This page was last edited on 21 June 2018, at 17:35 (UTC)
under CC BY-SA license.