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Juniperus horizontalis Moench
Life   Plantae   Gymnospermae   Cupressaceae   Juniperus

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Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma @ 355848C (1); 355848D (1); 355848A (1); 355848B (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 @ BPI (9); 122473B (1)

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 served from Plant Bug AMNH_PBI00002728 wa%201997%20l46%20h080
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Following served from Plant Bug AMNH_PBI00002285 wa1999%20l59%20h193
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Following served from Plant Bug AMNH_PBI00001128 wa%201996%20l26%20h087
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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 : 6
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

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   

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Updated: 2018-10-22 15:23:32 gmt
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