Top Leaf PNG Images
A leaf is the principal lateral appendage of the stem which is in turn part of a plant. Hence a leave is an organ of a vascular plant. The shoot is formed together by the stem and the leaves. Foliage is a term used for referring leaves collectively. As is one must have often heard, 'autumn foliage'. The characteristic of this plant organ is that it is a dorsoventrally flattened organ, usually borne above the ground, and specialised for its function of photosynthesis. Photosynthesis is the process of converting the intake of carbon dioxide into oxygen. The primary photosynthesis tissue, in most leaves, known as palisade mesophyll, is located on the upper side of the blade or lamina of the leaf. However there are still exceptions, like in some species, including the mature foliage of Eucalypts, palisade mesophyll is present on both sides and these leaves are said to be isobilateral.
Many leaves have a distinct upper surface, also known as adaxial and distinct lower surface called abaxial which differ in colour, the number of stomata ( stomata are the pores present on leaves that intake and output gases), hairiness, the amount and structure of epicuticular wax and other features. When talking about the colour of leaves, they are mostly green, but there are always exceptions.
In this sub category you can download free PNG images: Leaf Nature. In this category "Leaf" we have 290 free PNG images with transparent background.
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Yellow Dandelion Image Download HD PNG
Format: PNG
Resolution: 500x481
Size: 185.3KB
Downloads: 218 -
Colored Dandelion Download PNG Download Free
Format: PNG
Resolution: 564x836
Size: 263.1KB
Downloads: 218 -
Dandelion Free HQ Image
Format: PNG
Resolution: 800x600
Size: 388.7KB
Downloads: 217 -
Green Energy Free PNG HQ
Format: PNG
Resolution: 576x218
Size: 10.8KB
Downloads: 216 -
Jasmine Garland Photos PNG File HD
Format: PNG
Resolution: 450x600
Size: 119.5KB
Downloads: 216 -
Soap Bubbles HD Free Clipart HD
Format: PNG
Resolution: 1024x768
Size: 157.2KB
Downloads: 216 -
Growing Plant HD PNG Free Photo
Format: PNG
Resolution: 420x205
Size: 25.4KB
Downloads: 215 -
Falling Leaf PNG Image High Quality
Format: PNG
Resolution: 650x728
Size: 93.8KB
Downloads: 215 -
Gardening Picture PNG Download Free
Format: PNG
Resolution: 550x424
Size: 207.4KB
Downloads: 215 -
Ground Image HD Image Free PNG
Format: PNG
Resolution: 1170x400
Size: 357.7KB
Downloads: 214 -
Growing Plant Free HD Image
Format: PNG
Resolution: 512x512
Size: 7.2KB
Downloads: 213 -
Icicles PNG Download Free
Format: PNG
Resolution: 4999x3115
Size: 3.4MB
Downloads: 213 -
Ice Cube Image Free Download PNG HQ
Format: PNG
Resolution: 553x500
Size: 175.3KB
Downloads: 213 -
Ice Cube Free PNG HQ
Format: PNG
Resolution: 525x284
Size: 174.3KB
Downloads: 212 -
Falling Leaf HD Free Download PNG HQ
Format: PNG
Resolution: 889x899
Size: 128.8KB
Downloads: 212 -
Falling Petals Free HQ Image
Format: PNG
Resolution: 894x894
Size: 842.2KB
Downloads: 212 -
Gardening PNG File HD
Format: PNG
Resolution: 558x548
Size: 74.6KB
Downloads: 212 -
Half Moon Download PNG Image High Quality
Format: PNG
Resolution: 450x450
Size: 28.5KB
Downloads: 211 -
Dandelion Picture Free HD Image
Format: PNG
Resolution: 1280x1047
Size: 225.4KB
Downloads: 211 -
Green Energy Image Free Download Image
Format: PNG
Resolution: 559x565
Size: 405.3KB
Downloads: 211
