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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Ground Picture HD Image Free PNG
Format: PNG
Resolution: 1600x1060
Size: 1.4MB
Downloads: 238 -
Icicles Image Free Download PNG HQ
Format: PNG
Resolution: 4055x6000
Size: 2.8MB
Downloads: 238 -
Falling Petals Download HD PNG
Format: PNG
Resolution: 852x480
Size: 75.8KB
Downloads: 238 -
Dandelion Picture Free Clipart HQ
Format: PNG
Resolution: 4275x1900
Size: 461.9KB
Downloads: 237 -
Soap Bubbles Download Image HD Image Free PNG
Format: PNG
Resolution: 534x712
Size: 213.0KB
Downloads: 237 -
Falling Petals Free Clipart HQ
Format: PNG
Resolution: 1920x1080
Size: 543.3KB
Downloads: 236 -
Dandelion Photos Download Free Image
Format: PNG
Resolution: 450x333
Size: 84.0KB
Downloads: 234 -
Bin Associate Symbol Recycling Recycle Waste Electronic
Format: PNG
Resolution: 800x800
Size: 60.2KB
Downloads: 234 -
Colored Dandelion HD Image Free PNG
Format: PNG
Resolution: 1181x1181
Size: 284.7KB
Downloads: 234 -
Colored Dandelion Photos PNG Download Free
Format: PNG
Resolution: 650x1011
Size: 449.2KB
Downloads: 234 -
Soap Bubbles Image Free Download Image
Format: PNG
Resolution: 500x500
Size: 99.2KB
Downloads: 232 -
Colored Dandelion Image Download HD PNG
Format: PNG
Resolution: 792x612
Size: 12.5KB
Downloads: 230 -
Colored Dandelion Free HD Image
Format: PNG
Resolution: 800x1000
Size: 538.1KB
Downloads: 230 -
Ground Free PNG HQ
Format: PNG
Resolution: 600x258
Size: 146.1KB
Downloads: 230 -
Green Leaf Free PNG HQ
Format: PNG
Resolution: 2329x1957
Size: 2.5MB
Downloads: 229 -
Growing Plant Download Free Clipart HD
Format: PNG
Resolution: 600x574
Size: 128.5KB
Downloads: 229 -
Growing Plant Free Download Image
Format: PNG
Resolution: 512x512
Size: 16.1KB
Downloads: 228 -
Green Energy Free HQ Image
Format: PNG
Resolution: 988x471
Size: 39.7KB
Downloads: 228 -
Japanese Flowering Cherry Download Free Clipart HD
Format: PNG
Resolution: 660x660
Size: 288.9KB
Downloads: 228 -
Half Moon PNG Download Free
Format: PNG
Resolution: 980x978
Size: 39.6KB
Downloads: 227
