Jepson eFlora: Taxon page
Vascular Plants of California
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Lonicera japonica
JAPANESE HONEYSUCKLE


Higher Taxonomy
Family: CaprifoliaceaeView DescriptionDichotomous Key
Common Name: HONEYSUCKLE FAMILY
Habit: Subshrub to small tree or vine. Leaf: opposite, simple or compound; stipules generally 0. Flower: calyx tube fused to ovary, limb generally 5-lobed; corolla radial or bilateral, rotate to cylindric, generally 5-lobed; stamens generally 5, epipetalous, alternate corolla lobes; ovary inferior, 1--5-chambered, style 1. Fruit: berry, drupe.
Genera In Family: 5 genera, 220 species: especially northern temperate. Note: Linnaea moved to Linnaeaceae; Sambucus and Viburnum to Adoxaceae.
eFlora Treatment Author: Charles D. Bell, family description, key to genera
Scientific Editor: Thomas J. Rosatti.
Genus: LoniceraView DescriptionDichotomous Key


Common Name: HONEYSUCKLE
Habit: Shrub, twining to erect. Leaf: simple, entire, generally short-petioled; 1--2 pairs beneath inflorescence often fused around stem. Inflorescence: spikes, +- interrupted, on axillary peduncles or at ends of branches, or flowers paired on axillary peduncles and subtended by 0--3 pairs of bracts. Flower: calyx limb 0 or generally 5-toothed, generally persistent; corolla 5-lobed, +- bilateral, 2-lipped (upper 4-lobed), swollen at base on 1 side; ovary chambers 2--3. Fruit: berry, generally round; seeds generally > 2.
Species In Genus: +- 200 species: temperate, subtropical North America, Europe, Asia, northern Africa. Etymology: (Johann Lonitzer, German herbalist, physician, 1499--1569, and/or his son, Adam Lonitzer, German botanist, 1528--1586)
Unabridged Note: According to Ferguson (1966 J Arnold Arbor 47:33--59), genus named "in honor of Johann Lonitzer, latinized Lonicerus, 1499--1569, a German herbalist and physician, not Adam Lonitzer, 1528--1586; see Linnaeus, Crit. Bot. 93 1737." In fact, although Linnaeus indicated in Critica Botanica (Hort translation, Ray Society, 1938, p. 76) that the genus Lonicera was named in honor of Johann Lonitzer, in Hortus Cliffortianus (1737; p. 58) he states "...Loniceram ab Adamo Lonicero, antiquo Botanico...".
eFlora Treatment Author: Charles D. Bell & Lauramay T. Dempster
Reference: Howarth & Donoghue 2006 Proc Natl Acad Sci USA 103(24):9101--9106
Lonicera japonica Murray
NATURALIZED
Habit: Twining; herbage glabrous or soft-hairy. Leaf: generally 3--8 cm; blade oblong to ovate, base rounded, tip +- acute. Inflorescence: flowers paired, each pair subtended by 2 leaf-like bracts, 4 +- round bractlets, bractlets +- 1/2 ovary; peduncle 5--10 mm. Flower: corolla 25--40 mm, strongly 2-lipped, white turning yellow, often tinged +- purple, tube hairy; stamens, stigma exserted. Fruit: black. Chromosomes: 2n=18.
Ecology: Disturbed places; Elevation: generally < 1000 m. Bioregional Distribution: Deltaic GV, n CCo, SCo, SnGb, expected elsewhere; Distribution Outside California: abundant in southeastern United States; native to Asia. Flowering Time: May--Jul Note: Sporadic escape from cultivation.
Jepson eFlora Author: Charles D. Bell & Lauramay T. Dempster
Reference: Howarth & Donoghue 2006 Proc Natl Acad Sci USA 103(24):9101--9106
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Citation for this treatment: Charles D. Bell & Lauramay T. Dempster 2012, Lonicera japonica, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=31508, accessed on October 21, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 21, 2019.

Lonicera japonica
click for enlargement
© 2008 Neal Kramer
Lonicera japonica
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© 2016 Keir Morse
Lonicera japonica
click for enlargement
© 2016 Keir Morse
Lonicera japonica
click for enlargement
© 2016 Keir Morse
Lonicera japonica
click for enlargement
© 2016 Keir Morse
Lonicera japonica
click for enlargement
© 2016 Keir Morse

More photos of Lonicera japonica in CalPhotos



Geographic subdivisions for Lonicera japonica:
Deltaic GV, n CCo, SCo, SnGb, expected elsewhere
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.