캐나다박태기나무(1)

 

 

 

학명: Cercis canadensis L.

분류: 콩과(Leguminosae)

학명 풀이:

Cercis: From the Greek kerkis (weaver's shuttle ‘북’) which refers to the shape of the seed pods

 

 

 

사진: 2014.05.06. 부산대연수목원

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

위키 설명

Cercis canadensis (eastern redbud) is a large deciduous shrub or small tree, native to eastern North America from Southern ontario, Canada south to northern Florida but can thrive as far west as California.

It typically grows to 6–9 m (20–30 ft) tall with a 8–10 m (26–33 ft) spread. It generally has a short, often twisted trunk and spreading branches. A 10-year-old tree will generally be around 5 m (16 ft) tall. The bark is dark in color, smooth, later scaly with ridges somewhat apparent, sometimes with maroon(‘밤색’) patches. The twigs are slender and zigzag, nearly black in color, spotted with lighter lenticels. The winter buds are tiny, rounded and dark red to chestnut in color. The leaves are alternate, simple, and heart shaped with an entire margin, 7–12 cm (3-5 inches) long and wide, thin and papery, and may be slightly hairy below.

The flowers are showy, light to dark magenta pink in color, 1.5 cm (½ inch) long, appearing in clusters from Spring to early Summer, on bare stems before the leaves, sometimes on the trunk itself. The flowers are pollinated by long-tongued bees such as blueberry bees and carpenter bees. Short-tongued bees apparently cannot reach the nectaries. The fruit are flattened, dry, brown, pea-like pods, 5–10 cm (2-4 inches) long that contain flat, elliptical, brown seeds 6 mm (¼ inch) long, maturing in August to October.

.....중략 ......

Bark: Red brown, with deep fissures and scaly surface. Branchlets at first lustrous brown, later become darker.

Wood: Dark reddish brown; heavy, hard, coarse-grained, not strong. ......중략.......

Winter buds: Chestnut brown, obtuse, one-eighth inch long.

Leaves: Alternate, simple, heart-shaped or broadly ovate, two to five inches long, five to seven-nerved, cordate or truncate at the base, entire, acute. They come out of the bud folded along the line of the midrib, tawny)‘황갈색’) green; when they are full grown they become smooth, dark green above, paler beneath. In autumn they turn bright clear yellow. Petioles slender, terete, enlarged at the base. Stipules caduceous.

Flowers: April, May, before and with the leaves, papilionaceous. Perfect, rose color, borne four to eight together, in fascicles which appear at the axils of the leaves or along the branch and sometimes on the trunk itself.

Calyx: Dark red, campanulate, oblique, five-toothed, imbricate in bud.

Corolla: Papilionaceous, petals five, nearly equal, pink or rose color, upper petal the smallest, enclosed in the bud by the wings, and encircled by the broader keel petals.

Stamens: Ten, inserted in two rows on a thin disk, free, the inner row rather shorter than the others.

Pistil: Ovary superior, inserted obliquely in the bottom of the calyx tube, stipitate; style fleshy, incurved, tipped with an obtuse stigma.

Fruit: Legume, slightly stipitate, unequally oblong, acute at each end. Compressed, tipped with the remnants of the style, straight on upper and curved on the lower edge. Two and a half to three inches long, rose color, full grown by midsummer, falls in early winter.

Seeds ten to twelve, chestnut brown, one-fourth of an inch long -can be made to germinate by first dipping in boiled (99C) water (very hot) for a minute and then sowing in a pot (do not boil the seeds); cotyledons oval, flat.

출처:

http://en.wikipedia.org/wiki/Cercis_canadensis