Berzelia is a genus consisting of 12 species of upright, wiry stemmed, evergreen shrubs with a dense covering of small, fine, needle-like leaves. The flowers which appear in spring and summer, are minute but are packed in spherical clusters, of which there are several per head of bloom. The flowers are white to cream and, because the stamens extend beyond the tiny petals, the flower heads appear to be studded with protrusions. In cultivation, they are best grown in light well-drained growing medium with adequate moisture, positioning in full sun. Light trimming will retain the compact form after flowering. Most species are easily propagated from seed or small half-hardened tip cuttings.

Berzelia rubra, commonly known as Cobweb Kolkol and synonymously known as Berzelia squarrosa var. reflexa, is a vulnerable South African endemic species found in the Kleinrivier Mountains of the Western Cape Province, mainly on seepage areas and stream banks. During summer it produces striking white flowers that attract pollinators to the garden.