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Lonicera japonica

(Japanese Honeysuckle)

Overview

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Ornamental shrub from Asia.

Lonicera japonica is an extremely vigorous vine which grows up through the canopy of trees , smothering and ultimately killing the host tree. It is shade and drought tolerant , though it needs full to partial sunlight to grow successfully. L. japonica is beneficial as winter forage for white tail deer and is used for this purpose by wildlife managers. Birds and cotton-tailed rabbits also eat the seeds and leaves of the vine. It provides a habitat cover of twisted vines for birds and small mammals. Landscapers use it because of its fragrant smell. It is considered a valuable medical herb in China, where it is used to treat chicken pox and to maintain human vascular homeostasis .

Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Chinese:

Jin Yin Hua, Ren Dong

Common Names in English:

Chinese Honeysuckle, Hall's Honeysuckle, Halls Honeysuckle, Japanese Honeysuckle, Madreselva

Common Names in French:

Clématite Du Japon

Common Names in German:

Japanisches Geißblatt, Japanisches Geissblatt

Common Names in Japanese:

Nindo, Sui-Kazura, Suikazura

Common Names in Portuguese:

Madressilva

Common Names in Russian:

жимолост японская, žimolost Japonskaja

Common Names in Spanish:

Madreselva

Description

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Subfamily Faboideae

Mostly herbs, shrubs , or trees . Leaves pinnate or palmate to trifoliolate or apparently simple . Corolla usually, showy, zygomorphic, the petals imbricate, posterior (upper or banner ) petal outermost in bud. Stamens 10 or 9 + 1 (diadelphous ), not showy. Pollen released in monads . Seeds with u-shaped line (pleurogram) lacking. [Carr]

Physical Description

Species Lonicera japonica

L. japonica is an evergreen in its southern range and semi-evergreen in its northern range. Stems are hollow with peeling reddish-brown bark and usually 2 to 3 m long when developed. Leaves are 4 to 8 cm long and ovate in shape . L. japonica produces white to yellowish tubular flowers that are 2.5 to 5 cm long and black berries that contain 2 to 12 seeds. The seeds are 2 to 3 mm long, ovate in shape, and dark brown to black in colour . Flowers are produced during summer and fruit mature and are dispersed during autumn in eastern United States" (Hidayati et al. 2000). The blooming period extends from April to December in Georgia (Andrews 1919), late May to October in Kentucky (Nuzzo 1997), May to June in Illinois (Mohlenbrock 1986), and June in Michigan (Nuzzo 1997).

ID Features: A twining vine or groundcover. Stems pubescent. Evergreen or semievergreen tendencies. Flowers white, fading to yellow. Flowers fragrant.

Habit: A twining , climbing vine or prostrate and trailing semi-evergreen groundcover. Tends to be a weedy and rampant grower.

Flowers: Flowers are white and fade to yellow. Bloom time is mid-June. Flowers are fragrant. Relatively showy in full bloom. • Bloom Period: April, May. • Flower Color: near white, pale yellow, white

Seeds: Fruit: Small, black fruit. Not really of any ornamental significance.

Foliage: Summer foliage: Opposite, simple leaves. Evergreen , semievergreen, or deciduous, depending on the climate. Leaf shape is ovate . Leaves are 1.25" to 3.25" long. Leaf color is a dark, lustrous green. Young leaves and stems are pubescent . • Fall foliage: Leaves turn a bronze or purple.

Size/Age/Growth

Growth Rate: Vigorous. • Size: Can spread or climb 15' to 30' feet. As groundcover, it usually doesn't get much over 2' tall.

Landscaping

Landscape Uses: Barrier . Erosion control. Screen . Groundcover. Useful on banks. Difficult sites. For fragrance of flowers. • Liabilities: A rampant and weedy grower needing to be contained in some circumstances. Not evergreen in zones 6 or colder.

Habitat

L. japonica is found in a variety of habitats , including fields , forest edges and openings, disturbed woods , and floodplains . It is shade and drought tolerant , though it needs full to partial sunlight to grow successfully. L. japonica is still planted in gardens and along roadsides for landscaping purposes. It is hardy to zone 5.

Typically found at an altitude of 0 to 4,653 meters (0 to 15,266 feet).[1]

Biome: disturbed areas, natural forest , urban areas

Ecology: L. japonica competes with natives for light and nutrients . It outcompetes natives by spreading rapidly and completely covering and toppling small trees and shrubs in the process . This prevents the understory and small trees from developing, causing a reduction in forest understory diversity. The newly opened understory causes L. japonica to spread rapidly and provide habitat to other invasives, such as Hedera helix (English ivy) and Pueraria montana (kudzu).

Biology

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Reproduction

L. japonica reproduces vegetatively and by seed. Seeds are spread mostly by birds, which ingest the berries and excrete the seeds. L. japonica plants spread by way of aboveground runners that root at the nodes. The plants are pollinated by a variety of insects, such as bumblebees, butterflies, and especially hawkmoths, but in some areas may produce few fruits and seeds (Larson et al. 2002). Seeds require cold stratification to overcome dormancy (Hidayati et al. 2000). L. japonica produces 2 to 12 seeds per berry.

L. japonica has an extended growing season , owing to its evergreen nature.

Duration: Perennial

Growth

Culture: Easy to grow. Full sun to partial shade. Tolerant of difficult growing sites. Adaptable to most soils.

Soil: Minimum pH: 6.1 • Maximum pH: 7.8

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)

Taxonomy

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Unambiguous Synonyms

  1. Caprifolium japonicum (Thunb.) Dum. Cours.
  2. Lonicera japonica var. chinensis (P. W. Wats.) Baker
  3. Nintooa japonica (Thunb.) Sweet

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Place of publication : J. A. Murray, Syst. veg. ed. 14:216. 1784 May-Jun (Fl. jap. 89. 1784 Aug)

Name verified on 07-Nov-1986 by ARS Systematic Botanists. Last updated: 17-Jul-2007

Similar Species

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Members of the genus Lonicera

ZipcodeZoo has pages for 814 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

L. acrophila · L. acuminata (Honeysuckle) · L. acuminata var. depilata · L. acuminata var. giraldii · L. acutifolia · L. adenocarpa · L. adenophora · L. aemulans · L. aff. maackii · L. affinis · L. affinis var. pseudohypoglauca · L. alba · L. alberti · L. albertii · L. albiflora (White Limestone Honeysuckle) · L. albiflora dumosa · L. albiflora var. albiflora · L. alpigena · L. alpigena glehnii · L. alpigena hellenica · L. alpigena var. watanabeana · L. alpina · L. alseuosmoides · L. altaica · L. altaica subarctica · L. altissima · L. altmannii · L. altmannii Regel & Schmalh. var. hirtipes Rehder · L. altmannii Regel & Schmalh. var. pilosiuscula Rehder · L. altmannii Regel & Schmalh. var. saravshanica Rehder · L. americana · L. 'American' · L. amhersti · L. amoena · L. androsaemifolia · L. angustata · L. angustifolia · L. anisocalyx · L. anisotricha · L. annamensis · L. 'Anna Landers' · L. apodantha · L. arborea · L. arborea Boiss. var. persica (Jaub. & Spach) Rehder · L. arizonica (Arizona Honeysuckle) · L. asperifolia · L. atrosanguinea · L. aucherii · L. aurea · L. aureo-reticulata · L. balearica · L. baltica · L. barbinervis · L. belgica · L. bella (Bell´s Honeysuckle) · L. benjamini · L. bicolor · L. biflora · L. 'Bill Cowdell' · L. boczkarnikovae · L. borbasiana · L. bornmuelleri · L. bournei · L. braceana · L. brachypoda · L. brachypoda repens · L. brachypoda DC. var. aureo-variegata Jacob-Makoy · L. bracteata · L. bracteolaris · L. brandtii · L. brevisepala · L. breweri · L. 'Bright Eyes' · L. brownei var. fuchsioides · L. brownii var. punicea · L. brownii var. youngii · L. bubalina · L. buchananii · L. buddleioides · L. buergeriana · L. bukoensis · L. bulbalina · L. bungeana · L. buschiorum · L. buxifolia · L. caerulea (Sweetberry Honeysuckle) · L. caerulea altaica · L. caerulea baltica · L. caerulea borbasiana · L. caerulea calvescens · L. caerulea f. emphyllocalyx · L. caerulea f. sphaerocarpa · L. caerulea L. forma graciliflora Dippel · L. caerulea L. 'Globosa' · L. caerulea hirsuta · L. caerulea kamtschatica · L. caerulea kamtschatica 'Amur' · L. caerulea stenantha · L. caerulea subsp. pallasii · L. caerulea var. altaica

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 21, 2007:

Identifiers

Footnotes

  1. Mean = 212.850 meters (698.327 feet), Standard Deviation = 437.970 based on 1,320 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/1/2009