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Juniperus horizontalis Moench
Life   Plantae   Gymnospermae   Cupressaceae   Juniperus

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Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma @ 355848B (1); 355848A (1); 355848D (1); 355848C (1)
Diaspididae  Acutaspis morrisonorum @ AMNH_PBI (1)
Dothioraceae  Kabatina juniperi @ BPI (1)
Lasiosphaeriaceae  Endophragmiella boewei @ BPI (1)
Miridae  Aoplonema princeps @ AMNH_PBI (3)

Bolteria luteifrons @ NCSU_ENT (2); AMNH_PBI (1)

Coridromius chenopoderis @ AMNH_PBI (1)

Dichrooscytus alpinus @ AMNH_PBI (2)

Dichrooscytus elegans @ AMNH_PBI (1)

Dichrooscytus repletus @ AMNH_PBI (1)

Dichrooscytus ruberellus @ AMNH_PBI (14)

Gn_orthotylinigp14 sp_001 @ AMNH_PBI (1)

Gn_orthotylinigp5 sp_007 @ AMNH_PBI (1)

Myrtlemiris yalgoo @ AMNH_PBI (1)

Parthenicus juniperi @ AMNH_PBI (1)
Patellariaceae  Eutryblidiella sabina @ BPI (1)
Pucciniaceae  Gymnosporangium clavipes @ BPI (1)

Gymnosporangium connersii @ BPI (1)

Gymnosporangium corniculans @ 122473A (1); BPI (24)

Gymnosporangium globosum @ BPI (1)

Gymnosporangium juvenescens @ BPI (10)

Gymnosporangium nelsonii @ BPI (1)

Gymnosporangium nidus-avis @ 122473B (1); BPI (9)

Gymnosporangium tubulatum @ BPI (1)

Gymnosporangium @ BPI (5)
Sarcoscyphaceae  Pithya cupressina @ BPI (2)
Stereaceae  Aleurodiscus cerussatus @ BPI (1)
_  Roestelia brucensis @ BPI (7)

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Following modified from The Gymnosperm Database
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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=JUHO2 ---> https://plants.usda.gov/java/profile?symbol=JUHO2
https://plants.usda.gov/java/profile?symbol=JUHO2 ---> http://plants.usda.gov/core/profile?symbol=JUHO2
http://plants.usda.gov/core/profile?symbol=JUHO2 ---> https://plants.usda.gov/core/profile?symbol=JUHO2
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Juniperus horizontalis Moench
creeping juniper

Image of Juniperus horizontalis

General Information
Symbol: JUHO2
Group: Gymnosperm
Family: Cupressaceae
Duration: Perennial
Growth Habit : Subshrub
Native Status : AK   N
L48   N
Other Common Names: creeping-cedar
Waukegan juniper
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Juniperus thumbnails at the Plants Gallery

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 67. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .



Symbol Scientific Name
JUHOA2 Juniperus horizontalis Moench var. argentea hort.
JUHOD Juniperus horizontalis Moench var. douglasii hort.
JUHOG2 Juniperus horizontalis Moench var. glauca Hornibr.
JUHOV Juniperus horizontalis Moench var. variegata Beissn.
JUHU3 Juniperus hudsonica Forbes
JUPR2 Juniperus prostrata Pers.
JURE4 Juniperus repens Nutt.
JUVIP Juniperus virginiana L. var. prostrata (Pers.) Torr.
SAHO7 Sabina horizontalis (Moench) Rydb.
SAPR10 Sabina prostrata (Pers.) Antoine


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Coniferophyta – Conifers
Class Pinopsida
Order Pinales
Family Cupressaceae – Cypress family
Genus Juniperus L. – juniper
Species Juniperus horizontalis Moench – creeping juniper

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Illinois trailing juniper Endangered
Iowa creeping juniper Threatened
New Hampshire creeping juniper Endangered
New York prostrate juniper Endangered
Vermont creeping juniper Threatened

Wetland Status

Interpreting Wetland Status

North America
Alaska UPL
Arid West FACU
Great Plains UPL
Midwest FACU
Northcentral & Northeast FACU
Western Mountains, Valleys, and Coast FACU

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (JUHO2)
Flora of North America (JUHO2)
Integrated Taxonomic Information System (JUHO2)
Integrated Taxonomic Information System (JUHOD)
Integrated Taxonomic Information System (JUHOV)
Integrated Taxonomic Information System (JUHU3)
Integrated Taxonomic Information System (JUPR2)
Integrated Taxonomic Information System (JURE4)
Integrated Taxonomic Information System (JUVIP)
Integrated Taxonomic Information System (SAHO7)
Integrated Taxonomic Information System (SAPR10)
Lady Bird Johnson Wildflower Center Native Plant Information Network (JUHO2)
Native American Ethnobotany (University of Michigan - Dearborn) (JUHO2)
Native Plants Network (JUHO2)
USDA Forest Service Fire Effects Information System (JUHO2)
University of Wisconsin - Stevens Point Freckmann Herbarium (JUHO2)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 2 | Cupressaceae | Juniperus

3. Juniperus horizontalis Moench, Methodus. 699. 1794.

Creeping juniper, savinier, genévrier horizontal

Juniperus horizontalis var. douglasii hort.; J . horizontalis var. variegata Beissner

Shrubs dioecious, prostrate to decumbent; crown depressed. Bark brown, exfoliating in thin strips, that of small branchlets (5--10 mm diam.) smooth, that of larger branchlets exfoliating in wide strips or plates. Branches creeping; branchlets erect, 3--4-sided in cross section, ca. 2/3 or less as wide as length of scalelike leaves. Leaves green but turning reddish purple in winter, abaxial gland elliptic, conspicuous, exudate absent, margins entire (at 20´ and 40´); whip leaves 4--8 mm, not glaucous adaxially; scalelike leaves 1.5--2 mm, mostly overlapping to 1/3 their length, apex rounded or obtuse to acute and apiculate, spreading. Seed cones mostly maturing in 2 years, of 2 distinct sizes, generally with curved peduncles, globose to ovoid, 5--7 mm, blue-black to brownish blue when mature, lightly glaucous, soft and resinous, with 1--2(--3) seeds. Seeds 4--5 mm. 2 n = 22.

Sand dunes, sandy and gravelly soils, prairies, slopes, rock outcrops, and stream banks; 0--1000 m; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Alaska, Ill., Iowa, Maine, Mass., Mich., Minn., Mont., Nebr., N.H., N.Y., N.Dak., S.Dak., Vt., Wis., Wyo.

Juniperus horizontalis , a prostrate species, hybridizes with the trees J . virginiana and J . scopulorum (R. P. Adams 1983; N. C. Fassett 1945; M. Palma-Otal et al. 1983) and is closely related to both. The hybrid between J . horizontalis and J . scopulorum has been named J . ´ fassettii Boivin.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Juniperus+horizontalis&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Juniperus+horizontalis&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 8
Query: SELECT * FROM img WHERE ready=1 and taxon like "Juniperus horizontalis%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0506 2212 [detail]
© 2006 Louis-M. Landry

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0506 2213 [detail]
© 2006 Louis-M. Landry

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0107 0980 [detail]
© 2007 Louis-M. Landry

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0510 2586 [detail]
© 2010 Louis-M. Landry

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0912 0418 [detail]
© 2012 RT Hawke

Juniperus horizontalis
Juniperus horizontalis
Creeping Juniper
ID: 0000 1111 1234 3237 [detail]
© 2016 Keir Morse

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0819 0113 [detail]
© 2019 John Doyen

Juniperus horizontalis
Juniperus horizontalis
ID: 0000 0000 0819 0107 [detail]
© 2019 John Doyen

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