EVER since Europeans began trading the whorled ivory tusk of the narwhal in the 12th century, people have puzzled over its purpose.
Its whorled, many-flowered clusters of yellowish, purple-tinged blooms are followed by red berries.
The three patterns of leaf arrangement on stems in angiosperms are alternate, opposite (paired), and whorled.
The shaft of the ceremonial mace is the whorled tusk of a narwhal, a small Arctic whale.
The leaves of these plants are opposite or whorled and usually paired or in threes.
The embryo consists of an absorptive foot, a primary root (radicle), and a shoot with whorled appendages.
Viewed up close, the whorled patterns of his fingerprints can easily be seen; from a distance the method is unidentifiable, and the fingerprints combine to create an illusionistic whole.
Leaves are generally alternately arranged along a stem and are only rarely opposite or whorled.
Fagales are all trees or shrubs with simple leaves, or compound leaves in Juglandaceae and Rhoipteleaceae, usually arranged alternately (rarely opposite or whorled).
Leaves are usually simple and are alternate (or rarely opposite or whorled) in arrangement along the stems.
Hairy golden aster (Heterotheca villosa), New England aster (Symphyotrichum novae-angliae), Schreber's aster (Eurybia schreberi), and mountain aster (or whorled wood aster; Oclemena acuminata) are all common wildflowers in North America, and some are used as ornamentals.
