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그루안

Oriental Raisin Tree

Hovenia dulcis · Rhamnaceae · 헛개나무

Look

Leaves
Broadly egg-shaped, pointed at the tip, with a lopsided, slightly heart-shaped or round base and three large veins developing from the lower part. 8 to 15 cm long and 6 to 12 cm wide, with blunt teeth on the margin.
Flowers
In late July, green flowers 7 mm across open in cymes 4 to 6 cm across.
Fruit
Round, brownish fruit 8 mm across with three chambers, each holding one seed; the fruit stalk swells irregularly and lumpily, and it matures in October.
Bark
Dark brown.

Where it grows

In Korea
Native (Korean Peninsula)
Native to
Found in China, Japan and elsewhere; in Korea it grows in Jeollanam-do, Jeollabuk-do, Gyeongsangbuk-do, Gangwon-do, Chungcheongnam-do, Gyeonggi-do and Hwanghae-do.
Ecology
A moderately shade-tolerant tree that grows in shade or sun and does well in fertile sandy loam. It is strongly cold-hardy, shade tolerant, salt tolerant and pollution tolerant, but weak in drought tolerance. It grows fast and sprouts vigorously.

Sources