The 'Chrysopogon zizanioides', well known as Vetiver, is a tropical plant with unique characteristics, so much that experts call it the miracle grass.

岩兰草，是具有独特的特点的热带植物，被许多专家称之为奇迹草。

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A perennial, sod-forming tropical American grass (Paspalum notatum) grown in warm regions, such as the southern United States, for forage, soil binding, and turf.

美洲雀稗：一种多年生的可形成草皮的热带美洲草类（巴伊亚雀稗雀稗属） ，生长在温暖地区，如美国南方，用作饲料、土壤粘和剂和草皮。

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The new breed of pennisetum pureum tropical forage grass has been cultured which is accustomed to the sub tropic climate condition via introduction and choosing of hybridization.

用美洲狼尾草与非洲象草进行远源杂交，选育出了适应亚热带气候条件栽培的热带牧草王草新品种，并大田观察其生物学特性。

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Former commissioner MacMillan contends that Panama has badly neglected the military bases, ports and other facilities that have been placed in its charge, and shows reporters photos of abandoned Panama Railroad cars overgrown with grass and tropical vines.

CNN: The Canal Cronies

The neatly trimmed grass is lush and green and the smell of tropical flowers waltz(ph) through the air.

NPR: Remembering Pearl Harbor