The genus comprises a few species of South American annual or short-lived perennial, herbaceous, rank-smelling plants in which the many branches are spreading, procumbent, or feebly ascendent and commonly 2 to 6 feet in length, though under some conditions, particularly in the South and in California, they grow much longer.
"Tomato Culture: A Practical Treatise on the Tomato"
William Warner Tracy
The herb is a Composite plant, and grows in every hedgerow, with numerous small heads of yellow flowers, having outermost white rays, but with an upright stem; whereas that of the true garden Chamomile is procumbent.
"Herbal Simples Approved for Modern Uses of Cure"
William Thomas Fernie
The various species of Vaccinium are of dwarf or procumbent growth, and only suitable for planting in beds, or on rockwork, where they will not be lost sight of.
"Hardy Ornamental Flowering Trees and Shrubs"
A. D. Webster