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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Shrub > Species: Gordonia lasianthus | Loblolly-Bay
 

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BOTANICAL AND ECOLOGICAL CHARACTERISTICS

SPECIES: Gordonia lasianthus | Loblolly-Bay
GENERAL BOTANICAL CHARACTERISTICS : Loblolly-bay is a small to medium-sized native, evergreen tree or shrub. It grows to about 65 feet (20 m) in height and has a narrow conical to columnar crown [10]. The simple leaves are alternate, leathery, and thick. The rough bark of mature trees is thin, interlaced with flat-topped ridges and separated by narrow furrows. The perfect, solitary flowers are axillary to close-set leaves on the current years twigs. The fruit is a hard, woody, five-valved capsule about 0.6 inch (1.5 cm) long with each valve containing four to eight flat, winged seeds. Loblolly-bay has a large primary root with secondary roots branching downward [9,20,23,24]. RAUNKIAER LIFE FORM : Phanerophyte REGENERATION PROCESSES : Seed production and dissemination: Loblolly-bay produces an abundance of lightweight, winged seed. Most of the seeds fall within a radius of two to three times the height of the source tree. Seeds are shaken out of the capsules by the wind, and empty capsules remain attached until peduncle and capsule abscission [6,12]. Seedling development: Germination is epigeal. Most loblolly-bay seedlings do not live past the first growing season; those that do show slow initial growth. By the end of the third growing season the seedlings are about 4 to 6 inches (10-15 cm) tall and by the eighth growing season are 12 to 16 inches (30-40 cm) tall [12]. Vegetative reproduction: Vegetative reproduction of first-year shoots in a peat and sand medium under mist is commonly used by horticulturists. In the field, vegetative reproduction is more common than regeneration from seed. Stump sprouts may grow as much as 3 feet (1 m) in the first year [12]. SITE CHARACTERISTICS : Loblolly-bay grows in warm, wet, temperate climates with an average annual precipitation of 64 inches (1,630 mm) in Florida to about 44 inches (1,120 mm) in North Carolina. The species grows in acid, swampy soils of pinelands and bays on the Atlantic and Gulf coastal plains. Loblolly-bay is found on several soil series. It grows on certain Spodosols, Inceptisols, Ultisols, and Histosols, and to a lesser degree on Entisols and Mollisols. Loblolly-bay grows in flat woodlands or shallow depressions with little or no slope, slow runoff, rapid permeability, and poor to very poor drainage. In South Carolina the soils are usually of sandy coastal plain or marine origin, except for the organic soils. The water table is usually at or near the soil surface from 6 to 9 months of the year [1,2,12,18]. Associated hardwoods include water oak (Quercus nigra), sweetgum (Liquidambar styraciflua), American holly (Ilex opaca), red bay Persea barbonia var. barbonia), and black tupelo (Nyssa sylvatica). Associated shrubs include fetterbush (Lyonia lucida), inkberry (Ilex glabra), greenbrier (Smilax spp.), southern bayberry (Myrica cerifera), and swamp cyrilla (Cyrilla racemiflora) [1,3,11,18]. SUCCESSIONAL STATUS : Faculative Seral Species. Loblolly-bay is classed as tolerant of shade. In bays and wet flats where tree cover is relatively light, loblolly-bay is a strong competitor [12,13,19]. SEASONAL DEVELOPMENT : Loblolly-bay flowers from the last week in June to the first week in July. Flowers remain open for 1 or 2 days and are pollinated by bees, flies, and hummingbirds. After the second day, the sepals and petals fall, leaving the ovary at the end of the peduncle. As the ovaries develop, they gradually turn brown and five sutures develop. Mature open capsules first appear during September or October, and all the capsules open by the middle of December. Seedfall starts in October, peaks in December, and continues until early March [12].

Related categories for Species: Gordonia lasianthus | Loblolly-Bay

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Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

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