Juniperus horizontalis

Source: Wikipedia, the free encyclopedia.

Juniperus horizontalis
Foliage and cones

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order:
Cupressales
Family: Cupressaceae
Genus: Juniperus
Species:
J. horizontalis
Binomial name
Juniperus horizontalis
Moench 1794
Natural range of Juniperus horizontalis
Synonyms[2]
  • Juniperus prostrata Pers. 1807
  • Juniperus repens Nutt. 1818
  • Juniperus racemosa Risso 1826
  • Juniperus hudsonica Forbes 1839
  • Sabina prostrata (Pers.) Antoine 1857
  • Sabina racemosa (Risso) Antoine 1857
  • Sabina horizontalis (Moench) Rydb. 1912

Juniperus horizontalis, the creeping juniper or creeping cedar,[3] is a low-growing shrubby juniper native to northern North America, throughout most of Canada from Yukon east to Newfoundland, and in some of the northern United States.

Description

Living up to both its scientific and common names, the species reaches only 10–30 centimetres (3+7811+34 in) tall but often spreading several metres wide. The shoots are slender, 0.7–1.2 millimetres (132116 in) diameter. The

dioecious
, producing cones of only one sex on each plant.

It is closely related to Juniperus virginiana, and often hybridizes with it where their ranges meet in southern Canada. Hybrids with Juniperus scopulorum also occur.

Distribution and habitat

The species is native to northern North America, throughout most of Canada from Yukon east to Newfoundland, and in the United States in Alaska, and continentally from Montana east to Maine, reaching its furthest south in Wyoming and northern Illinois. Amongst the sites it occupies are rocky areas of the east slopes of the Rocky Mountains.[4]

Cultivation and uses

Well over 100 different cultivars have been selected for use as ornamental plants in gardens, their strictly prostrate growth habit being valued for ground cover. Popular examples include 'Bar Harbor', 'Blue Acres', 'Emerald Spreader', 'Green Acres', and 'Wiltonii' ("Blue Rug Juniper"). Many of the most popular cultivars have strikingly glaucous foliage, while others are bright green, yellowish or variegated.

Gallery

  • Plant at Pancake Bay sand dunes, Ontario, Canada
    Plant at Pancake Bay sand dunes, Ontario, Canada
  • Juniperus horizontalis 'Wiltonii' as a garden plant
    Juniperus horizontalis 'Wiltonii' as a garden plant

References

  1. . Retrieved 13 November 2021.
  2. ^ Juniperus horizontalis The Plant List (2010). Version 1. Published on the Internet; http://www.theplantlist.org/ 22 Nov. 2011
  3. ^ Bailey, L.H.; Bailey, E.Z.; the staff of the Liberty Hyde Bailey Hortorium. 1976. Hortus third: A concise dictionary of plants cultivated in the United States and Canada. Macmillan, New York.
  4. .

Further reading

External links