e-Key v3 - *Juniperus
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Cupressaceae - *Juniperus L.

Description:

  • Monoecious or dioecious shrubs or trees with thin, shredding bark; branchlets terete, 3-6-angled, variously oriented but not in flattened sprays
  • Leaves: juvenile leaves needle-like, usually in whorls of 3, spreading, acute to mucronate, with 1 or 2 pale bands on upper surface; adult leaves opposite, in 4 ranks, closely appressed to divergent, scale-like to subulate, free portion up to ± 10 mm long; abaxial gland visible or not, usually elongate, sometimes exuding white crystalline deposit
  • Male cones with 3-7 pairs or trios of sporophylls, each sporophyll with 2-8 pollen sacs
  • Female cones maturing in 1 or 2 years, globose to ovoid, fleshy, 3-20 mm in diameter, remaining closed, usually glaucous; scales persistent, in 1-3 pairs, peltate, tightly coalesced, usually thick and fleshy
  • Seeds 1-3 per scale, round to faceted, wingless; cotyledons 2-6
  • x = 11

Nomenclature:

  • *Juniperus L.
    • Linnaeus: 1003 (1753)
    • Linnaeus: 461 (1754)
    • Welch: 84 (1986)
    • Adams: 412 (1993)
  • Sabina Mill.
    • Miller: [247] (1754)

Distribution & Notes:

  • Global: Species ± 60, temperate to subtropical northern hemisphere
  • Southern Africa: Species 1: *Juniperus virginiana L., recorded as naturalised (Free State)

References:

  • ADAMS, R.P. 1993. Juniperus. Flora of North America 2
  • LINNAEUS, C. 1753. Species plantarum. Laurentius Salvius, Stockholm
  • LINNAEUS, C. 1754. Genera plantarum, edn 5. Laurentius Salvius, Stockholm
  • MILLER, P. 1754. The gardener's dictionary, abridged, edn 4. Vol. 3. Rivington, London
  • WELCH, H.J. 1986. Juniperus. European Garden Flora 1