A single plant selected for comparison in a shady grassy area c 200 feet from Deadman's Creek was found to have peripheral florets with ligules similar to those of both type II and type III as well as long tubular corollas as with type IV. The two extremes are illustrated with full images below. Intermediate forms are given in the table from smallest to largest. [Click on an image in the table to view an enlargement.]
A count of all florets from a type II-III head compared with (a) a type IV head and (b) the averages for a type III head.
Type II-III | Type IV | averages for type III | |
---|---|---|---|
long–tubular & ligulate | 21 | 17 | 18 (reduced ligules) |
short–tubular, pistillate | 47 | 46 | 39 |
central perfect | 8 | 9 | 12 |
total: | 76 | 72 | 69 |
mdash; Flora of Texas mdash; Chaptalia texana