Hawaii is filled with sweet-smelling flowers, lush vegetation, and exotic plant life.

African Tulip Trees -- Even from afar, you can see the flaming red flowers on these large trees, which can grow to be more than 50 feet tall.

Angel's Trumpets -- These small trees can grow up to 20 feet tall, with an abundance of large pendants -- white or pink flowers that resemble, well, trumpets. The flowers, which bloom continually from early spring to late fall, have a musky scent. Warning: All parts of the plant are poisonous and contain a strong narcotic.

Anthuriums -- More than 550 species exist, but the most popular are the heart-shaped red, orange, pink, white, and purple flowers with tail-like spathes. Look for the heart-shaped green leaves in shaded areas. These exotic plants have no scent but will last several weeks as cut flowers. Anthuriums are particularly prevalent on the Big Island.

Banyan Trees -- Among the world's largest trees, banyans have branches that grow out and away from the trunk, forming descending roots that grow down to the ground to feed and form additional trunks, making the tree very stable during tropical storms.

Birds of Paradise -- These natives of Africa have become something of a trademark of Hawaii. They're easily recognizable by the orange and blue flowers nestled in gray-green bracts, looking somewhat like birds in flight.

Bougainvillea -- Originally from Brazil, these vines feature colorful, tissue-thin bracts, ranging in color from majestic purple to fiery orange, that hide tiny white flowers. A good place to spot them is on the Big Island, along the Queen Kaahumanu Highway stretching from Kona Airport to Kailua-Kona.

Breadfruit Trees -- A large tree -- more than 60 feet tall -- with broad, sculpted, dark-green leaves, the famous breadfruit produces a round, head-size green fruit that's a staple in the diets of all Polynesians. When roasted or baked, the whitish-yellow meat tastes somewhat like a sweet potato.

Bromeliads -- There are more than 1,400 species of bromeliads, of which the pineapple plant is the best known. "Bromes," as they're affectionately called, are generally spiky plants ranging in size from a few inches to several feet in diameter. They're popular not only for their unusual foliage, but also for their strange and wonderful flowers. Used widely in landscaping and interior decoration, bromeliads are found on every island.

Coffee -- Hawaii is the only state that produces coffee commercially. Coffee is an evergreen shrub with shiny, waxy, dark-green pointed leaves. The flower is a small, fragrant white blossom that develops into half-inch berries that turn bright red when ripe. Look for coffee at elevations above 1,500 feet on the Kona side of the Big Island and on large coffee plantations on Kauai, Molokai, Oahu, and Maui.

Ginger -- White and yellow ginger flowers are perhaps the most fragrant in Hawaii. Usually found in clumps growing 4 to 7 feet tall in areas blessed by rain, these sweet-smelling, 3-inch-wide flowers are composed of three dainty petal-like stamens and three long, thin petals. Look for white and yellow ginger from late spring to fall. If you see ginger on the side of the road, stop and pick a few blossoms -- your car will be filled with a divine fragrance the rest of the day.

Other members of the ginger family frequently seen in Hawaii include red, shell, and torch ginger. Red ginger consists of tall green stalks with foot-long red "flower heads." The red "petals" are actually bracts, which protect the 1-inch-long white flowers. Red ginger, which does not share the heavenly smell of white ginger, lasts a week or longer when cut. Look for red ginger from spring through late fall. Shell ginger, which originated in India and Burma, thrives in cool, wet mountain forests. These plants, with their pearly white, clamshell-like blossoms, bloom from spring to fall.

Perhaps the most exotic ginger is the red or pink torch ginger. Cultivated in Malaysia as seasoning, torch ginger rises directly out of the ground. The flower stalks, which are about 5 to 8 inches in length, resemble the fire of a lighted torch. This type of ginger can bloom year-round.

Heliconia -- Some 80 species of the colorful heliconia family came to Hawaii from the Caribbean and Central and South America. The bright yellow, red, green, and orange bracts overlap and appear to unfold like origami birds. The most obvious heliconia to spot is the lobster claw, which resembles a string of boiled crustacean pincers. Another prolific heliconia is the parrot's beak: Growing to about hip height, it's composed of bright-orange flower bracts with black tips. Look for parrot's beaks in spring and summer.

Hibiscus -- The 4- to 6-inch hibiscus flowers bloom year-round and come in a range of colors, from lily white to lipstick red. The flowers resemble crepe paper, with stamens and pistils protruding spirelike from the center. The yellow hibiscus is Hawaii's official state flower.

Jacaranda -- Beginning around March and sometimes lasting until early May, these huge lacy-leaved trees metamorphose into large clusters of spectacular lavender-blue sprays. The bell-shaped flowers drop quickly, leaving a majestic purple carpet beneath the tree.

Macadamia -- A transplant from Australia, macadamia nuts have become a commercial crop in recent decades in Hawaii, especially on the Big Island and Maui. The large trees -- up to 60 feet tall -- bear a hard-shelled nut encased in a leathery husk, which splits open and dries when the nut is ripe.

Monkeypod Trees -- The monkeypod is one of Hawaii's most majestic trees; it grows more than 80 feet tall and 100 feet across. Seen near older homes and in parks, the leaves of the monkeypod drop in February and March.

Night-Blooming Cereus -- Look along rock walls for this spectacular night-blooming flower. Originally from Central America, this vinelike member of the cactus family has green scalloped edges and produces foot-long white flowers that open as darkness falls and wither as the sun rises. The plant also bears an edible red fruit.

Orchids -- To many minds, nothing says Hawaii more than orchids. The most widely grown variety -- and the major source of flowers for leis and garnish for tropical libations -- is the vanda orchid. The vandas used in Hawaii's commercial flower industry are generally lavender or white, but they grow in a rainbow of colors, shapes, and sizes. The orchids used for corsages are the large, delicate cattleya; the ones used in floral arrangements are usually dendrobiums. On the Big Island, don't pass up a chance to wander through the numerous orchid farms around Hilo.

Pandanus (Hala) -- Called hala by Hawaiians, pandanus is native to Polynesia. Thanks to its thick trunk, stiltlike supporting roots, and crown of long, swordlike leaves, the hala tree is easy to recognize. In what is quickly becoming a dying art, Hawaiians weave the lau (leaves) of the hala into hats, baskets, mats, bags, and the like.

Plumeria -- This sweet-smelling, five-petal flower, found in clusters on trees, is the most popular choice of lei makers. The Singapore plumeria has five creamy-white petals, with a touch of yellow in the center. Another popular variety, ruba -- with flowers from soft pink to flaming red -- is also used in leis. Be careful of the sap from the flower -- it's poisonous and can stain clothes.

Protea -- This unusual oversize shrub comes in more than 40 varieties. The flowers of one species resemble pincushions; those of another look like a bouquet of feathers. Once dried, proteas will last for years.

Silversword -- This very uncommon and unusual plant is seen only on the Big Island and in the Haleakala Crater on Maui. It blooms between July and September. The silversword in bloom is a fountain of red-petaled, daisy-like flowers that turn silver soon after blooming.

Taro -- Ground pools, near streams, and in neatly planted fields, you'll see these green heart-shaped leaves, whose dense roots are a Polynesian staple. The ancient Hawaiians pounded the roots into poi. Originally from Sri Lanka, taro not only is a food crop, but is also grown for ornamental purposes.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.