Very remarkable plants of the umbelliferous order, mostly of an attractive character.
Gigantic umbelliferous plants, with magnificent foliage, adapted for shrubbery borders or open spots on lawns.
This sheath is comparatively rare in dicotyledons, but is seen in umbelliferous plants.
Labiate, composite and umbelliferous plants are most common.
At the base of the general umbel in umbelliferous plants a whorl of bracts often exists, called a general involucre, and at the base of the smaller umbels or umbellules there is a similar leafy whorl called an involucel or partial involucre.