Arborescent cacti having very spiny cylindrical stem segments ; southwestern united states and mexico .
有多刺茎干的树状仙人掌;美国西南部和墨西哥。
Arborescent cactus of western mexico bearing a small oblong edible berrylike fruit .
墨西哥西部树状的仙人掌,结可食的小而圆的果实。
Large evergreen arborescent herb having huge paddle-shaped leaves and bearing inedible fruit that resemble bananas but edible young flower shoots ; sometimes placed in genus musa .
常青的巨大树状草本植物,有巨大的桨状叶子,果实像香蕉但不可食;通常归入musa属。
Extinct plants having tall arborescent trunks comparable to or more advanced than cycads ; known from the pennsylvanian ; probably extinct since the mesozoic .
已绝迹,树干高大,乔木状,与苏铁类相仿或更为进化;首先发现于宾夕法尼亚纪;可能自中生代起灭绝。
Arborescent coral found off the coast of bermuda ; dendriform sponges .
百慕大群岛海上发现的树状珊瑚;树状海绵。
Fossil arborescent plants arising during the lower devonian and conspicuous throughout the carboniferous .
树木化石状植物,发源于泥盆纪,鼎盛于石炭纪。
Economic ordering and pricing policies and various mathematical models of arborescent inventory system with constant demand rate are developed with either constant or instantaneous replenishment rate .