Jepson eFlora: Taxon page
Key to families | Table of families and genera | Map
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Lonicera involucrata var. ledebourii

Higher Taxonomy
Family: CaprifoliaceaeView DescriptionDichotomous Key

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

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
Species: Lonicera involucrataView Description 

Common Name: TWINBERRY
Habit: Erect, 6--30 dm; herbage with stalked glands, sparsely hairy. Leaf: 3--12 cm; petiole 2--10 mm; blade elliptic to ovate, base rounded or tapered, tip acute to acuminate. Inflorescence: flowers paired; peduncle 12--32 mm; bracts in 2 pairs, leaf-like, forming a conspicuous involucre, +- enveloping ovaries, outer opposite flowers, 7--12 mm, wide-ovate, generally acute, inner 4--8 mm, alternate flowers, deeply 2-lobed to entire, truncate, densely glandular. Flower: calyx limb 0; corolla 12--18 mm, +- cylindric to narrowly bell-shaped, +- yellow, hairy, lobes +- 2 mm, subequal, +- spreading; stamens generally included; ovaries of flower pair free. Fruit: 6--10 mm, black, in enlarged, purple or red, spreading or reflexed involucre.

Lonicera involucrata var. ledebourii (Eschsch.) Jeps.
Habit: Plant 15--36 dm. Leaf: leathery. Flower: corolla yellow, strongly tinged orange or red, tube cylindric; stigma included or +- exserted.
Ecology: Moist places; Elevation: < 1500 m. Bioregional Distribution: NCo, NCoRH, NCoRI, CCo; Distribution Outside California: southern Oregon. Flowering Time: May--Jul
eFlora Treatment Author: Charles D. Bell & Lauramay T. Dempster
Jepson Online Interchange

Previous taxon: Lonicera involucrata var. involucrata
Next taxon: Lonicera japonica

Name Search
botanical illustration including Lonicera involucrata var. ledebourii


Citation for this treatment: Charles D. Bell & Lauramay T. Dempster 2017. Lonicera involucrata var. ledebourii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 18, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora,, accessed on October 18, 2017.

Lonicera involucrata var. ledebourii
click for enlargement
© 2007 Neal Kramer
Lonicera involucrata var. ledebourii
click for enlargement
© 2005 George W. Hartwell
Lonicera involucrata var. ledebourii
click for enlargement
© 2005 George W. Hartwell
Lonicera involucrata var. ledebourii
click for enlargement
© 2017 Steve Matson
Lonicera involucrata var. ledebourii
click for enlargement
© 2013 Vernon Smith
Lonicera involucrata var. ledebourii
click for enlargement
© 2013 Neal Kramer

More photos of Lonicera involucrata var. ledebourii in CalPhotos

Geographic subdivisions for Lonicera involucrata var. ledebourii:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.