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사사프라스 알비둠-Sassafras albidum (Nutt.) Nees식물/들꽃-녹나무과(Lauraceae) 2023. 5. 22. 09:36
과명 Lauraceae (녹나무과) 속명 Sassafras (사사프라스속) 전체학명 [정명] Sassafras albidum (Nutt.) Nees 추천명 사사프라스 알비둠 이명 외국명 Sassafras 추천명변경: 알비둠사사프라스 -> 사사프라스 알비둠
Sassafras albidum (sassafras, white sassafras, red sassafras, or silky sassafras) is a species of Sassafras native to eastern North America, from southern Maine and southern Ontario west to Iowa, and south to central Florida and eastern Texas. It occurs throughout the eastern deciduous forest habitat type, at altitudes of up to 1,500 m (4,900 ft) above sea level. It formerly also occurred in southern Wisconsin, but is extirpated there as a native tree.
Description
Sassafras albidum is a medium-sized deciduous tree growing to 15–20 m (49–66 ft) tall, with a canopy up to 12 m (39 ft) wide, with a trunk up to 60 cm (24 in) in diameter, and a crown with many slender sympodial branches. The bark on trunk of mature trees is thick, dark red-brown, and deeply furrowed. The shoots are bright yellow green at first with mucilaginous bark, turning reddish brown, and in two or three years begin to show shallow fissures. The leaves are alternate, green to yellow-green, ovate or obovate, 10–15 cm (4–6 in) long and 5–10 cm (2–4 in) broad with a short, slender, slightly grooved petiole. They come in three different shapes, all of which can be on the same branch; three-lobed leaves, unlobed elliptical leaves, and two-lobed leaves; rarely, there can be more than three lobes. In fall, they turn to shades of yellow, tinged with red. The flowers are produced in loose, drooping, few-flowered racemes up to 5 cm (2 in) long in early spring shortly before the leaves appear; they are yellow to greenish-yellow, with five or six tepals. It is usually dioecious, with male and female flowers on separate trees; male flowers have nine stamens, female flowers with six staminodes (aborted stamens) and a 2–3 mm style on a superior ovary. Pollination is by insects. The fruit is a dark blue-black drupe 1 cm (0.39 in) long containing a single seed, borne on a red fleshy club-shaped pedicel 2 cm (0.79 in) long; it is ripe in late summer, with the seeds dispersed by birds. The cotyledons are thick and fleshy. All parts of the plant are aromatic and spicy. The roots are thick and fleshy, and frequently produce root sprouts which can develop into new trees.
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