Pictured are flowers of the orders asclepiadaceae, convolvulaceae, polemoniaceae, and hydrophyllaceae. The flowers of these orders that are illustrated are (1) asclepias, (2) convolvulus, (3) phlox, (4) polemonium, (5) hydrophyllum, and (6) phacelia.

Orders of Asclepiadaceae, Convolvulaceae, Polemoniaceae, and Hydrophyllaceae

Pictured are flowers of the orders asclepiadaceae, convolvulaceae, polemoniaceae, and hydrophyllaceae.…

"Convolvulus are a genus of plants, common in fields and hedges, especially when the soil is light. The species are generally twining and milky plants, though some are erect bushes. The leaves are often undivided."—(Charles Leonard-Stuart, 1911)

Convolvulus

"Convolvulus are a genus of plants, common in fields and hedges, especially when the soil is light.…