BugwoodWiki Article

oriental bittersweet
Celastrus orbiculatus Thunb.

Overview

Appearance
Celastrus orbiculatus is a perennial deciduous, climbing, woody vine that can grow to lengths of 60 ft. (18.3 m) and up to 4 in. (10 cm) in diameter. The striated bark is brown to dark brown. The smooth glabrous twigs can range from light gray to dark brown in color.
Foliage
The alternate, elliptical to circular leaves are light green in color and 2-5 in. (5-13 cm) long.
Flowers
Small, inconspicuous, axillary, greenish-white flowers bloom from May to early June. Oriental bittersweet closely resembles American bittersweet (Celastrus scandens). The main difference: Celastrus scandens has flowers and fruits at the ends of branches; Celastrus orbiculatus has flowers in the axils of the leaves.
Fruit
The small globose fruits are green when young; ripen to yellow; then split to reveal showy, scarlet berries that persist into winter.
Ecological Threat
Celastrus orbiculatus is commonly found in old home sites, fields, and road edges. The fast growing vines can cover, shade and outcompete other vegetation. It can even girdle and kill large trees. Birds and other wildlife eat the fruit, thus distributing the seeds. It hybridizes with Celastrus scandens, potentially leading to loss of genetic identity for the native species. It was introduced from China around 1860 as an ornamental.

Resources

Selected Images


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0016241

oriental bittersweet
Celastrus orbiculatus
Foliage
James H. Miller
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5269040

oriental bittersweet
Celastrus orbiculatus
Foliage
Chris Evans
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5271001

oriental bittersweet
Celastrus orbiculatus
Flower(s)
Leslie J. Mehrhoff
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0016390

oriental bittersweet
Celastrus orbiculatus
Fruit(s)
James H. Miller
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2118068

oriental bittersweet
Celastrus orbiculatus
Foliage
Chris Evans
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oriental bittersweet
Celastrus orbiculatus
Fruit(s)
James R. Allison
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2105095

oriental bittersweet
Celastrus orbiculatus
Fruit(s)
James R. Allison
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2105098

oriental bittersweet
Celastrus orbiculatus
Fruit(s)
James R. Allison
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2308050

oriental bittersweet
Celastrus orbiculatus
Fruit(s)
Leslie J. Mehrhoff
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0016100

oriental bittersweet
Celastrus orbiculatus
Feature(s)
James H. Miller
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2307119

oriental bittersweet
Celastrus orbiculatus
Foliage
James H. Miller
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2106018

oriental bittersweet
Celastrus orbiculatus
Foliage
James R. Allison
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5269038

oriental bittersweet
Celastrus orbiculatus
Flower(s)
Chris Evans
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2105070

oriental bittersweet
Celastrus orbiculatus
Plant(s)
James R. Allison
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5331035

oriental bittersweet
Celastrus orbiculatus
Infestation
Nancy Loewenstein
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oriental bittersweet
Celastrus orbiculatus
Infestation
Nancy Loewenstein
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1509009

oriental bittersweet
Celastrus orbiculatus
Stem(s)
Max Williamson

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Invasive Listing Sources

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Rosidae
Order: Celastrales
Family: Celastraceae
Genus: Celastrus

Other System Links

Plants: CEOR7
Bayer: CELOR
GRIN: 9719
ITIS: 506068
NPDN Pest: PBAACBB
NPDN Host: 34390

Synonyms and Other Names

Other Common Names:
Asiatic bittersweet

Related Scientific Names:

Celastrus orbiculata Thunb.(Synonym)

Categories

Category: Vines