umbellets造句

• The stem attaching the side umbellets to the main stem is called a "'ray " '.
• Compound umbels are umbels in which the single flowers are replaced by many smaller umbels called "'umbellets " '.
• The stems terminate into compound umbels of small white flowers, each of which spans about across and comprises about 8 umbellets, themselves each composed of some 16 flowers.
• The nearly spherical, headlike terminal umbellets contain many tiny white or purple-tinged flowers, whose protruding stamens make them appear very fuzzy in full bloom, as for the central umbels in the top right image.
• After fertilization and as seeds develop, the outer umbellets of an umbel bend inward causing the umbel shape to change from slightly convex or fairly flat to concave, and when cupped it resembles a bird's nest.
• Ranger's buttons plants are quite similar to the other large Umbelliferae that share similar habitats : cow parsnip, but each has a very differently shaped leaf, and the other two have umbellets with quite distinct flowers, in contrast to the tight balls on ranger's buttons.