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soft stem is called a herbaceous stem which is thin and flexible and woody plants are hard and thick
There are different kinds of stems some are woody and some are non-woody. Woody stems have alote of xylem tissue. Trees and shrubs have woody stems. The woody of conifers such as pine tree is soft wood.
Plants with soft stems are known as herbaceous plants. They have soft, green stems that contain little or no wood. Some examples of this type of plant are: grapevines, ferns, grasses, ivies and tulips.
Most photosynthesis takes place in the leaves but there are plants that can preform some photosynthesis in their stems. Not woody plants though.
How land plants get sunlight:Most land plants and trees have strong, woody stems to hold up their branches and leaves to get sufficient sunlight. Some plants however have soft, non-woody stems and cannot grow upright. So they need to have special adaptations to get their leaves in the best position to obtain sunlight. Such plant can be grouped as "creepers" or "climbers."CREEPERS:Creepers grow horizontally on the ground. Their shoots spread out on all sides of the main stem. Carpet grass and minosa are examples of creepers.CLIMBERS:Climbers climb onto supports such as walls, fences or other plants that have strong stems. Some climbers have tendrils or clasping roots to attach themselves to the supports.
Depends on the herbs your using and for what purpose, some herbs have soft stems such as parsley and basil and can be eaten, some have woody stems such as rosemary and thyme and are not good to eat. Generally just the leaves of all herbs are used, however stems can be used when flavouring stocks, or as a bed to roast meat, stems can also be used for other purposes for example the woody stems of rosemary can be used as a kebab 'skewer' especially for lamb kebabs.
Yes, several species of Hawaiian violets have woody upright stems.
Some plants have woody stems because of where they have originated. Like how if a plant is a first generation hybrid and has in it's genes part of a larger plant, such as a tree, it might have inherited the characteristic of a woody stem from one of it's "parents". This scenario might also work as well if the plant was a second generation. This is also why some plants have skinny or weak stems, like the bamboo tree.
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some plants need support to climb upwards because they are have tender stems
Honeysuckle is a woody plant. Some call it an arching vine. Others call it a twining bine. Honeysuckles have strong fibrous stems.
bean stems contain chloroplast, you can tell this is correct because they are a plant cell, and plants get nutrition from the sun, and chloroplasts turn the suns energy into protines for the plant.