Ilex opaca (American Holly) is a species of holly, native to the eastern United States, from coastal Massachusetts south to central Florida, and west to southeastern Missouri and eastern Texas.
The species typically grows as an understory tree in forests. It is rare in the north of its range in southern Connecticut, southeastern New York, and isolated areas of Cape Cod, and always small there. It is abundant further south on the southern coast and in the Gulf states, reaching its greatest size on the bottomlands of southern Arkansas and eastern Texas. The branches are short and slender. The roots are thick and fleshy. It will grow in both dry and swampy soil, but grows slowly.
The flowers are pollinated by insects, including bees, wasps, ants, and night-flying moths. The berries are reputedly poisonous to humans, but are important survival food for birds, who will eat the berries after other food sources are exhausted. The tree also forms a thick canopy which offers protection for birds from predators and storms. Songbirds including thrushes, mockingbirds, catbirds, bluebirds and thrashers frequently feed on the berries.
Cultivation and uses
The wood is very pale, tough, close-grained, takes a good polish, and is used for whip-handles, engraving blocks, and cabinet work. It can also be dyed and used as a substitute for ebony. It has a density 0.58 to 0.64. The sap is watery, and contains a bitter substance which possesses tonic properties.
It is often planted as an ornamental plant, although a slow growing one. Over 1,000 cultivars have been selected, including plants selected for cold tolerance (‘Cobalt’, a male cultivar, is able to tolerate temperatures as low as ?32 °C), growth form (e.g. dwarf forms such as ‘Cardinal Hedge’, a female plant growing to 1.2 m tall), and color and abundance of fruit (notable female cultivars including the large-berried ‘Yule’, and the yellow-berried ‘Canary’ and ‘Morgan Gold’).
Holly is a popular Christmas decoration. In English poetry and English stories the Holly is inseparably connected with the merry-making and greetings which gather around the Christmas time. The custom is followed in North America, and holly and mistletoe are widely used for decoration of homes and churches. The European Holly does not grow in the climate of most of the United States, but the American Holly makes an excellent second choice for it closely resembles the European species. The leaves are similar in outline and toothed and bristled very much the same way, but they are a paler green and the surface gloss is duller than in the European species.
Source: http://en.wikipedia.org/wiki/Ilex_opaca
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