Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera
    Index to accepted names and synonyms:
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Key to Ephedra

View taxon page for Ephedra

(For a list of species in Ephedra, use the above link.)

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

1. Leavescone bracts generally 3 per seed cones 

2. Uppermost  thorn-like;   persistent ..... E. trifurca

2' Uppermost  narrowed but not thorn-like;   deciduous, not 

3. Seed not beaked; twig yellow-green in youth;  base in age , swollen ..... E. californica

3' Seed beaked; twig gray-green in youth;  base in age not , not swollen ..... E. funerea

1' Leavescone bracts generally 2 per seed cones  or stalked

4. Distal bracts of seed cone fused >= 2/3, fleshy at maturity ..... E. foeminea

4' Distal bracts of seed cone free or fused < 1/3, scarious at maturity

5. Seed generally 1; seed cone stalk <= 2 mm ..... E. aspera

5' Seeds generally 2; seed cone stalk <= 11(50) mm

6. Twig pale green, glaucous in youth;  base gray, deciduousbracts of seed cone broadly  ..... E. nevadensis

6' Twig bright- to yellow-green in youth;  base brown, persistentbracts of seed cone  ..... E. viridis

 

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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, http://ucjeps.berkeley.edu/eflora/ [accessed on ]

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

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