Lonicera involucrata(Richardson) Banks ex Spreng.

twinberry honeysuckle

WFO wfo-0001290592 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Lonicera involucrata, photographed by Erin Springinotic
fig. a Erin Springinotic, CC0 1.0 / 2022-06-13 / obs. 205923159
Lonicera involucrata, photographed by Randal
fig. b Randal, CC0 1.0 / obs. 203968768
Lonicera involucrata, photographed by Braden J. Judson
fig. c Braden J. Judson, CC0 1.0 / obs. 205917380
Lonicera involucrata, photographed by Jens-Christian Svenning
fig. d Jens-Christian Svenning, CC BY 4.0 / obs. 202796762
Lonicera involucrata, photographed by Sue Carnahan
fig. e Sue Carnahan, CC BY 4.0 / obs. 205842046
Lonicera involucrata, photographed by Dutza K.
fig. f Dutza K., CC BY 4.0 / obs. 198287410
Lonicera involucrata, photographed by Cricket Raspet
fig. g Cricket Raspet, CC BY 4.0 / obs. 197352431
Lonicera involucrata, photographed by Cricket Raspet
fig. h Cricket Raspet, CC BY 4.0 / obs. 196204265

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Flowering n = 2,872 observations

Peak flowering in Jun, from 2,872 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 13 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Caprifolium flavescens Kuntze
  • Caprifolium ledebourii Greene
  • Distegia involucrata (Richardson) Rydb.
  • Distegia involucrata var. humilis (Koehne ex Rehder) Cockerell
  • Distegia nutans Raf.
  • Lonicera gibbosa DC.
  • Lonicera intermedia Kellogg
  • Lonicera involucrata var. flavescens (Dippel) Rehder
  • Lonicera involucrata var. involucrata
  • Lonicera ledebourii Eschsch.
  • Lonicera mociniana DC.
  • Xylosteon involucratum Richardson
  • Xylosteon ledebourii (Eschsch.) Howell

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.