Propria hermaphroditi infundibuliformis; limbo reflexo, quinquefido.
Femineis (si quæ) oblonga, obsolete tridentata.
Stamina. Hermaphroditis; filamenta quinque, capillaria, minima. Anthera cylindracea, tubulosa.
Pistillum utrisque; germen ovatum. Stylus filiformis, longitudine staminum. Stigmata duo, oblonga, revoluta.
Pericarpium nullum. Calyx conico-connivens.
Semina hermaphroditis solitaria, ovata. Pappus crinitus, longus. Femineis similima hermaphroditis.
Receptaculum nudum, planum.
Empalement. Common, double, conical, appearing cut off; scales awl-shaped, numerous, contracted above into a cylinder, parallel, contiguous, equal, the base tiled by a few scales, dead at the ends.
Blossom. Compound, taller than the cup; Hermaphrodite florets tubular, numerous in the disk; Female florets (if there are any) tongue-shaped in the circumference.
Hermaphrodite florets funnel shaped, border reflexed, five-cleft.