Jepson eFlora
Key to families | Table of families and genera

Key to Juniperus

View taxon page for Juniperus

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Leaf awl- or needle-like, suberect to spreading but not appressed; pollen, seed cones axillary; shrub < 1 m (sect. Juniperus) ..... J. communis

2. Leaf 10–20+ mm; glaucous stomatal band ± 1–1.5 × as wide as green leaf margin ..... var. depressa

2' Leaf 5–10(12) mm; glaucous stomatal band 2–4 × as wide as green leaf margin

3. Mature seed cone elongate to ± spheric; glaucous stomatal band 3–4 × as wide as green leaf margin ..... var. jackii

3' Mature seed cone spheric; glaucous stomatal band 2 × as wide as green leaf margin ..... var. saxatilis

1' Leaf generally scale-like, closely appressed; pollen, seed cones terminal; tree, shrub > 1 m (sect. Sabina)

4. Seed cone maturing blue-black; tree 5–15(30) m

5. Bark red-brown; leaves generally whorled in 3s; generally dioecious; High North Coast Ranges, High Sierra Nevada, San Gabriel Mountains, San Bernardino Mountains, East of Sierra Nevada, Desert Mountains ..... J. grandis

5' Bark brown; leaves opposite or whorled in 3s; generally ± monoecious; High Cascade Range, Modoc Plateau ..... J. occidentalis

4' Seed cone maturing red-brown; shrub, tree 1–8(10) m

6. Leaf gland obvious; trunks several at base; generally dioecious ..... J. californica

6' Leaf gland obscure; trunk generally 1 at base; monoecious ..... J. osteosperma


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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