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Why Do Leaves Have Veins? The primary purpose of the veins in a leaf is to carry food and water throughout the leaf. The veins also have a secondary purpose, which is to help provide support for the rest of the leaf. In many types of leaves, the veins form a large pattern that resembles a net. This pattern is made up of much larger, primary ...


Answer . It's the type of hydrangea you have (there are several different species) and those leaves (if they have small veins of white or lighter green than the whole leaf) is called 'varigated ...


Why do some leaves have net veins and others have parallel veins? What functions do veins serve in leaves? Which surface of the leaves has more prominent veins? Does oxygen leave leaves through their veins? What trees have elongated leaves with parallel veins?


Veins – The blackish lines in the leaf blade are called veins. The largest black line is the leaf’s single “midvein,” running from the petiole to the leaf tip, the smaller blackish lines branching off the midvein are “secondary veins”.Veins lend support to the leaf tissue, helping it keep its shape, just like the ribs in an umbrella.


Why do leaves have veins? ... Mushrooms do not have leaves, so they do not netted veins like manyplants. Mushrooms instead have a central stalk and parallel veins. share with friends.


Monocot leaves have veins that are parallel, have leaves that are in groups of three, have one cotyledon and have scattered vascular bundles. They are one type of a leaf with the majority of other leaves being dicot leaves. The name monocot essentially stems from the amount of cotyledons that are present in the leaf.


Petiolated leaves have a petiole (leaf stalk), and are said to be petiolate. Sessile (epetiolate) leaves have no petiole and the blade attaches directly to the stem. Subpetiolate leaves are nearly petiolate or have an extremely short petiole and may appear to be sessile. In clasping or decurrent leaves, the blade partially surrounds the stem.


New University of Arizona research indicates that leaf vein patterns correlate with functions such as carbon intake and water use – knowledge that could help scientists better understand the complex carbon cycle that is at the heart of global climate warming. "Leaves have very different networks of veins.


Houseplant new growth leaves growing in as a faded washed out green or yellow, with dark green leaf veins. Chlorosis is commonly the cause of these symtoms exibited by your houseplant leaves. Look inside the Thoughthole to learn more about the cause, prevention and treatement of Chlorosis.


Monday, we talked about nitrogen deficiency, which causes older leaves to yellow and newer leaves to stay green. However, when it comes to iron deficiency it is the opposite – younger leaves turn yellow first. The other characteristic of iron deficient plants is that although the younger leaves turn yellow, their veins remain green.