Table 21. Erigeron heterophyllum.

Fig. 1. Represents the upper portion of Erigeron heterophyllum. of the size of nature; the primary branch just past flowering, the secondary, or external branches, in full bloom. The ray-florets are rarely pure white, generally of the colour represented; and from this, gliding imperceptibly into purple.
2. The lower or radicle portion of the same, having had, between this and the upper part, twelve inches of the stem cut away.

This image is from W. Barton's Vegetable Materia Medica, 1817 (Vol. I), 1818 (Vol. II), Erigeron heterophyllum.