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 Free PNG HQ
Format: PNG
Resolution: 624x629
Size: 167.7KB
Downloads: 200 -
Yellow Dandelion Free Clipart HQ
Format: PNG
Resolution: 936x853
Size: 781.8KB
Downloads: 200 -
Ground PNG Image High Quality
Format: PNG
Resolution: 1063x203
Size: 72.7KB
Downloads: 199 -
Dandelion Image PNG Download Free
Format: PNG
Resolution: 600x600
Size: 89.5KB
Downloads: 199 -
Dandelion Free Photo PNG
Format: PNG
Resolution: 1200x900
Size: 495.3KB
Downloads: 199 -
Soap Bubbles Image Free PNG HQ
Format: PNG
Resolution: 735x720
Size: 127.5KB
Downloads: 198 -
Green Energy Download Image PNG Free Photo
Format: PNG
Resolution: 440x720
Size: 58.0KB
Downloads: 198 -
Green Energy Download Free Clipart HQ
Format: PNG
Resolution: 500x500
Size: 86.1KB
Downloads: 198 -
Ground HD PNG Image High Quality
Format: PNG
Resolution: 1024x210
Size: 29.0KB
Downloads: 198 -
Ice Cube Image HD Image Free PNG
Format: PNG
Resolution: 500x347
Size: 232.5KB
Downloads: 197 -
Yellow Dandelion Free Clipart HD
Format: PNG
Resolution: 2400x2400
Size: 567.1KB
Downloads: 197 -
Icicles Download PNG Image High Quality
Format: PNG
Resolution: 1200x848
Size: 528.5KB
Downloads: 196 -
Gardening Image Free Download PNG HQ
Format: PNG
Resolution: 460x346
Size: 183.8KB
Downloads: 196 -
Japanese Flowering Cherry HQ Image Free PNG
Format: PNG
Resolution: 894x894
Size: 793.7KB
Downloads: 196 -
Jasmine Garland HD Download HD PNG
Format: PNG
Resolution: 600x600
Size: 163.1KB
Downloads: 195 -
Dandelion Download Download Free Image
Format: PNG
Resolution: 960x720
Size: 634.7KB
Downloads: 195 -
Growing Plant Free Download Image
Format: PNG
Resolution: 512x512
Size: 9.2KB
Downloads: 194 -
Jasmine Garland Download Free Download Image
Format: PNG
Resolution: 600x600
Size: 185.4KB
Downloads: 194 -
Green Energy Image Free HQ Image
Format: PNG
Resolution: 512x512
Size: 15.4KB
Downloads: 194 -
Dandelion Free HD Image
Format: PNG
Resolution: 600x600
Size: 48.5KB
Downloads: 194
