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SPECIES: Lonicera hispidula
Table of Contents


  Michael Charters @
Anderson, Michelle D. 2007. Lonicera hispidula. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: /database/feis/plants/vine/lonhis/all.html [].



pink honeysuckle

The scientific name of pink honeysuckle is Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray (Caprifoliaceae) [14,15,16]. Pink honeysuckle infrataxa are:

Lonicera hispidula var. hispidula [14,16]
Lonicera hispidula var. vacillans (Benth.) Gray [16]

Lonicera hispidula Douglas var. vacillans A. Gray [14]
   =Lonicera hispidula var. vacillans (Benth.) Gray


No special status

Information on state-level protected status of plants in the United States is available at Plants Database.


SPECIES: Lonicera hispidula
In September of 2006 an extensive search was done to locate information on pink honeysuckle with little success (see FEIS's list of source literature). The following paragraphs provide details of what information was available.

Pink honeysuckle is found in western North America, from British Columbia south to California [14,15,16,23]. It is more prevalent in coastal regions than interior regions [18]. Plants Database provides a distributional map of pink honeysuckle and its infrataxa.


SPECIES: Lonicera hispidula

This description provides characteristics that may be relevant to fire ecology, and is not meant for identification. Keys for identification are available (e.g., [14,15]).

Pink honeysuckle is a native, woody evergreen liana [15,16] with a sprawling or climbing growth form [14,17,18,21,23]. It reaches 6 to 20 feet (1.8-6.0 m) in height [14]. It seldom blooms [21], but when it does, pink honeysuckle displays a spike inflorescence with paired flowers 0.4 to 0.8 inch (1-2 cm) long [14,15,23].

Pink honeysuckle is a submontane to montane species. It grows in maritime to submaritime, summer-dry climates [18,34]. Pink honeysuckle is found on south or west aspects with gentle to moderate slopes [7,28]. It is characteristic of moisture-deficient sites and occurs sporadically on "water-shedding" sites [18,23]. Soils are generally very dry to moderately dry [7,18,33,34] and often acidic (pH 4.0-6.5) [34]. Pink honeysuckle is typical of California riparian areas, though more commonly found in coastal riparian areas than in Central Valley riparian areas [7,14,17,27]. It has been described as a wetland plant [16]. The elevation range for pink honeysuckle in California and Oregon is 1,500 to 3,500 feet (450-1,070 m) [35].

Pink honeysuckle is described as both shade tolerant and shade intolerant; it is found in thickets and climbing trees in open-canopy forests [18,23].

Nongame birds eat pink honeysuckle fruits [4].

Pink honeysuckle is a foliar host for the pathogen sudden oak death mold (Phytophthora ramorum) which causes "sudden oak death", a deadly canker disease of tanoak (Lithocarpus densiflorus), coast live oak (Quercus agrifolia), California black oak (Q. kelloggii), and interior live oak (Q. wislizenii) in California and Oregon [12,22,26,30].

Pink honeysuckle is likely top-killed by fire and may sprout after fire [29].

Further research is needed on all aspects of pink honeysuckle.


SPECIES: Lonicera hispidula
The following table provides fire regime information that may be relevant to pink honeysuckle habitats. Follow the links in the table to documents that provide more detailed information on these fire regimes. Find further fire regime information for the plant communities in which this species may occur by entering the species name in the FEIS home page under "Find Fire Regimes".

Fire regime information on vegetation communities in which pink honeysuckle may occur. This information is taken from the LANDFIRE Rapid Assessment Vegetation Models [20], which were developed by local experts using available literature, local data, and/or expert opinion. This table summarizes fire regime characteristics for each plant community listed. The PDF file linked from each plant community name describes the model and synthesizes the knowledge available on vegetation composition, structure, and dynamics in that community. Cells are blank where information is not available in the Rapid Assessment Vegetation Model.
Pacific Northwest California      
Pacific Northwest
Vegetation Community (Potential Natural Vegetation Group) Fire severity* Fire regime characteristics
Percent of fires Mean interval
Minimum interval
Maximum interval
Northwest Woodland
Oregon white oak-ponderosa pine Replacement 16% 125 100 300
Mixed 2% 900 50  
Surface or low 81% 25 5 30
Ponderosa pine Replacement 5% 200    
Mixed 17% 60    
Surface or low 78% 13    
Oregon white oak Replacement 3% 275    
Mixed 19% 50    
Surface or low 78% 12.5    
Northwest Forested
Sitka spruce-western hemlock Replacement 100% 700 300 >1,000
Douglas-fir (Willamette Valley foothills) Replacement 18% 150 100 400
Mixed 29% 90 40 150
Surface or low 53% 50 20 80
Oregon coastal tanoak Replacement 10% 250    
Mixed 90% 28 15 40
Douglas-fir-western hemlock (dry mesic) Replacement 25% 300 250 500
Mixed 75% 100 50 150
Douglas-fir-western hemlock (wet mesic) Replacement 71% 400    
Mixed 29% >1,000    
Mixed conifer (southwestern Oregon) Replacement 4% 400    
Mixed 29% 50    
Surface or low 67% 22    
California mixed evergreen (northern California) Replacement 6% 150 100 200
Mixed 29% 33 15 50
Surface or low 64% 15 5 30
Pacific silver fir (low elevation) Replacement 46% 350 100 800
Mixed 54% 300 100 400
Vegetation Community (Potential Natural Vegetation Group) Fire severity* Fire regime characteristics
Percent of fires Mean interval
Minimum interval
Maximum interval
California Grassland
California grassland Replacement 100% 2 1 3
Herbaceous wetland Replacement 70% 15    
Mixed 30% 35    
California Shrubland
Coastal sage scrub Replacement 100% 50 20 150
Coastal sage scrub-coastal prairie Replacement 8% 40 8 900
Mixed 31% 10 1 900
Surface or low 62% 5 1 6
Chaparral Replacement 100% 50 30 125
California Woodland
California oak woodlands Replacement 8% 120    
Mixed 2% 500    
Surface or low 91% 10    
Ponderosa pine Replacement 5% 200    
Mixed 17% 60    
Surface or low 78% 13    
California Forested
California mixed evergreen Replacement 10% 140 65 700
Mixed 58% 25 10 33
Surface or low 32% 45 7  
Coast redwood Replacement 2% ≥1,000    
Surface or low 98% 20    
Mixed conifer (North Slopes) Replacement 5% 250    
Mixed 7% 200    
Surface or low 88% 15 10 40
Mixed evergreen-bigcone Douglas-fir (southern coastal) Replacement 29% 250    
Mixed 71% 100    
*Fire Severities
Replacement: Any fire that causes greater than 75% top removal of a vegetation-fuel type, resulting in general replacement of existing vegetation; may or may not cause a lethal effect on the plants.
Mixed: Any fire burning more than 5% of an area that does not qualify as a replacement, surface, or low-severity fire; includes mosaic and other fires that are intermediate in effects.
Surface or low: Any fire that causes less than 25% upper layer replacement and/or removal in a vegetation-fuel class but burns 5% or more of the area [13,19].


SPECIES: Lonicera hispidula
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3. Atzet, Tom; Wheeler, David; Smith, Brad; Riegel, Gregg; Franklin, Jerry. 1985. The tanoak series of the Siskiyou region of southwest Oregon. Forestry Intensified Research. Corvallis, OR: Oregon State University. 6(4): 6-10. [8594]
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13. Hann, Wendel; Havlina, Doug; Shlisky, Ayn; [and others]. 2008. Interagency fire regime condition class guidebook. Version 1.3, [Online]. In: Interagency fire regime condition class website. U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; The Nature Conservancy; Systems for Environmental Management (Producer). 119 p. Available: [2008, September 03]. [70966]
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17. Katibah, Edwin F.; Nedeff, Nicole E.; Dummer, Kevin J. 1984. Summary of riparian vegetation aerial and linear extent measurements from the Central Valley Riparian Mapping Project. In: Warner, Richard E.; Hendrix, Kathleen M., eds. California riparian systems: Ecology, conservation, and productive management: Proceedings; 1981 September 17-19; Davis, CA. Berkeley, CA: University of California Press: 46-50. [5824]
18. Klinka, K.; Krajina, V. J.; Ceska, A.; Scagel, A. M. 1989. Indicator plants of coastal British Columbia. Vancouver, BC: University of British Columbia Press. 288 p. [10703]
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20. LANDFIRE Rapid Assessment. 2007. Rapid assessment reference condition models, [Online]. In: LANDFIRE. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Lab; U.S. Geological Survey; The Nature Conservancy (Producers). Available: [2008, April 18] [66533]
21. Minore, Don. 1972. A classification of forest environments in the South Umpqua basin. Res. Pap. PNW-129. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 28 p. [1660]
22. Pillsbury, Norman H.; Bonner, Lawrence E.; Thompson, Richard P.; Mark, Walter R.; Cuzick, Roy D. 2004. Long-term growth, sudden oak death assessment and economic viability of coast live oak in three California counties: Seventeen-year results. Volume 1. Technical Report No. 12. San Luis Obispo, CA: California Polytechnic State University, Natural Resources Management Department, Urban Forest Ecosystems Institute. 54 p. [1599]
23. Pojar, Jim; MacKinnon, Andy, eds. 1994. Plants of the Pacific Northwest coast: Washington, Oregon, British Columbia and Alaska. Redmond, WA: Lone Pine Publishing. 526 p. [25159]
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30. Swain, Steve. 2002. An update on Phytophthora ramorum, causal agent of sudden oak death. International Oaks. 13: 38-45. [47625]
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