Vines and how to grow them; a manual of climbing plants for flower, foliage and fruit effects, both ornamental and useful, including those shrubs and similar forms that may be used as vines (1911)
McCollom, William C · Garden City, N.Y., Doubleday, Page & company · leaf 118
purpose to which vines are generally applied,but which is good for covering fences and otherobjects where a heavy screen is not desired, isthe butterfly pea (Centrosema Virginianum),a small, thin-leaved vine, with clusters of violet-coloured flowers produced all summer. It isalso a good plant for… … Plate XI
Ornamental climbing plants
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