Difference between revisions of "Translations:AY Honors/Grasses/Answer Key/16/en"

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Message definition (AY Honors/Grasses/Answer Key)

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Grasses generally have the following characteristics:
[[Image:Grass-plant-structure.png|250px|thumb|left|Structure of a grass plant.]]
Poaceae have hollow stems called '''''culms''''', plugged at intervals called '''''nodes'''''. Leaves are alternate, ''distichous'' (in one plane) or rarely spiral, parallel-veined and arise at the nodes. Each leaf is differentiated into a lower '''''sheath''''' hugging the stem for a distance and a '''''blade''''' with margin usually entire (meaning continuous and un-toothed). The leaf blades of many grasses are hardened with silica phytoliths, which helps discourage grazing animals. In some grasses (such as sword grass) this makes the grass blades sharp enough to cut human skin. A membranous appendage or fringe of hairs, called the ''ligule'', lies at the junction between sheath and blade, preventing water or insects from penetrating into the sheath.
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<!-- 1. What characteristics must a plant have to qualify as a grass? -->
Grasses generally have the following characteristics:
[[Image:Grass-plant-structure.png|250px|thumb|left|Structure of a grass plant.]]
Poaceae have hollow stems called '''''culms''''', plugged at intervals called '''''nodes'''''. Leaves are alternate, ''distichous'' (in one plane) or rarely spiral, parallel-veined and arise at the nodes. Each leaf is differentiated into a lower '''''sheath''''' hugging the stem for a distance and a '''''blade''''' with margin usually entire (meaning continuous and un-toothed). The leaf blades of many grasses are hardened with silica phytoliths, which helps discourage grazing animals. In some grasses (such as sword grass) this makes the grass blades sharp enough to cut human skin. A membranous appendage or fringe of hairs, called the ''ligule'', lies at the junction between sheath and blade, preventing water or insects from penetrating into the sheath.
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Grasses generally have the following characteristics:

Structure of a grass plant.

Poaceae have hollow stems called culms, plugged at intervals called nodes. Leaves are alternate, distichous (in one plane) or rarely spiral, parallel-veined and arise at the nodes. Each leaf is differentiated into a lower sheath hugging the stem for a distance and a blade with margin usually entire (meaning continuous and un-toothed). The leaf blades of many grasses are hardened with silica phytoliths, which helps discourage grazing animals. In some grasses (such as sword grass) this makes the grass blades sharp enough to cut human skin. A membranous appendage or fringe of hairs, called the ligule, lies at the junction between sheath and blade, preventing water or insects from penetrating into the sheath.