Rhizosphere Image Gallery

Baccharis pilularis

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SCALE: Unless otherwise noted, these images are two centimeters wide and just under one and a half centimeters tall. To estimate the dimensions of zoom images, compare to their corresponding wide-angle shot. A fully-zoomed image can represent an area of the soil a mere three millimeters wide and two millimeters tall!


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The scene aboveground

Site: UCSC Arboretum

B. pilularis is a much-branched, erect shrub 1 to 4 meters high. It is a chaparral plant common on hillsides and in canyons below 2000 ft.


The scene belowground


This image contains both old, darker roots, and new white roots.


This image contains both old, darker roots, and new white roots.


Root tip



This image is from the deepest part of the tube, about 4 ft deep.


This is from an area of densely brancing roots about 2 ft deep.


This is from an area of densely brancing roots about 2 ft deep.


This is from an area of densely brancing roots about 2 ft deep.



A young root.


This was collected in the surface layer. Roots in this layer could belong to the large plant, or they could belong to various shallow-rooted grasses or forbs. The horizontal structure in this image may be a grass rhizome.


This image is from the surface litter. Notice the grub.


A large root tip. The image has a hazy quality, which often is a clue to the presence of fungi or fine root hairs.


This is a zoom-in of the image above.


Lateral root.


Lateral roots.



This shows a root that is forming a young lateral bud. This will later develop into a new root.



This was collected in the surface layer. Roots in this layer could belong to the large plant, or they could belong to various shallow-rooted grasses or forbs.


An unusually straight, unbranched root.


This was collected in the surface layer. Roots in this layer could belong to the large plant, or they could belong to various shallow-rooted grasses or forbs.


A root tip. Notice the root hairs.


A junction on a young root.


This is a zoom image. Notice the root hairs.