disciform head
plant anatomy
Learn about this topic in these articles:
Asteraceae
- In Asteraceae: Flowers
The disciform head, a special derivative of the radiate type, resembles the discoid head in lacking the marginal rays, but the outer flowers are pistillate, with a tubular, rayless corolla. Plants of the genus Gnaphalium (cudweed) have disciform heads. Some varieties of a species, such as…
Read More