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.
-
Growing Plant Image Free Download Image
Format: PNG
Resolution: 1614x820
Size: 393.7KB
Downloads: 204 -
Half Moon Picture Free Download Image
Format: PNG
Resolution: 512x512
Size: 11.5KB
Downloads: 204 -
Gardening Download Image Download HQ PNG
Format: PNG
Resolution: 512x512
Size: 21.3KB
Downloads: 204 -
Gardening HD Free Transparent Image HD
Format: PNG
Resolution: 512x512
Size: 15.3KB
Downloads: 204 -
Half Moon Photos Free Clipart HQ
Format: PNG
Resolution: 600x599
Size: 65.2KB
Downloads: 203 -
Jasmine Garland Free HD Image
Format: PNG
Resolution: 450x600
Size: 168.4KB
Downloads: 203 -
Icicles HD Image Free PNG
Format: PNG
Resolution: 1024x680
Size: 1.2MB
Downloads: 202 -
Soap Bubbles PNG Image High Quality
Format: PNG
Resolution: 919x720
Size: 506.0KB
Downloads: 202 -
Gardening Free HQ Image
Format: PNG
Resolution: 2400x1797
Size: 178.7KB
Downloads: 202 -
Green Energy Images Free Download Image
Format: PNG
Resolution: 558x557
Size: 71.7KB
Downloads: 202 -
Ground Image Free HD Image
Format: PNG
Resolution: 5000x2235
Size: 927.8KB
Downloads: 202 -
Ice Cube Picture Free Transparent Image HD
Format: PNG
Resolution: 952x1074
Size: 146.8KB
Downloads: 202 -
Colored Dandelion Free Download PNG HD
Format: PNG
Resolution: 650x391
Size: 62.9KB
Downloads: 202 -
Yellow Dandelion Image PNG Free Photo
Format: PNG
Resolution: 709x720
Size: 597.3KB
Downloads: 202 -
Growing Plant Free HQ Image
Format: PNG
Resolution: 603x993
Size: 171.1KB
Downloads: 201 -
Soap Bubbles Download Free Image
Format: PNG
Resolution: 435x800
Size: 172.6KB
Downloads: 201 -
Yellow Dandelion Download Free HQ Image
Format: PNG
Resolution: 894x894
Size: 796.7KB
Downloads: 201 -
Icicles Picture Download Free Image
Format: PNG
Resolution: 456x400
Size: 158.9KB
Downloads: 200 -
Gardening Free Transparent Image HD
Format: PNG
Resolution: 1794x1237
Size: 356.2KB
Downloads: 200 -
Green Energy Photos Download HQ PNG
Format: PNG
Resolution: 730x747
Size: 49.1KB
Downloads: 200
