Resembling a disc in shape (similar to discoid).

Having upper and lower surfaces of different colors (especially leaves).

Separate and distinct; not fused or joined.

A shallow container planted with small ornamental plants, often succulents.

The process of eliminating pathogens from soil, tools, or plant material.

Having separated or discontinuous distribution (of plant populations).

The small tubular flowers in the center of composite flower heads (Asteraceae).

Having or producing two seeds.

The breaking apart of soil aggregates into individual particles.

Deeply divided into many segments or lobes (describing leaves or other plant parts).