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 Rhamnaceae

View taxon page for Rhamnaceae

 

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

1. Flowers conspicuous; petals generally 5; petals, sepals, 
pedicels 
image missingStalk of an individual flower in an inflorescence, or the corresponding structure in fruit.
white to deep blue or pink ..... CEANOTHUS

1' Flowers inconspicuous; petals 0–5, generally green or white; sepals, pedicels white, green, or gray

2. Fruit a capsule

3. Branches 
opposite 
image missing1. Arranged in pairs along an axis - e.g., two leaves per node. 2. Occurring in the same rank, directly above or below, as 'stamens opposite petals'. 3. Located directly across from.
, green; twigs jointed at base; SCo, PR ..... ADOLPHIA

3' Branches 
alternate 
image missing1. Arranged singly, often spirally, along an axis - e.g., one leaf per node. 2. Occurring in different ranks, appearing to be between, not directly above or below, as 'stamens alternate petals'.
, ± white; twigs not jointed at base; s DMoj, DSon ..... COLUBRINA

2' Fruit a drupe

4. Fruit of 2–4 separate stones; widespread

5. Winter 
bud 
image missing1. An incompletely developed, more or less embryonic shoot, usually covered with bud scales. 2. An unopened flower, often protected by sepals.
 scales 0; petals 5; sepals fleshy, 
erect 
image missingUpright; vertically oriented.
, keeled adaxially ..... FRANGULA

5' Winter bud scales present; petals 0 or 4–5; sepals thin, 
spreading 
image missingOriented more or less perpendicularly to the axis of attachment; often, more or less horizontal.
, not keeled adaxially ..... RHAMNUS

4' Fruit of 1 stone; D, e PR, SCo

6. Petals 0; disk 0 or thin in early flower ..... CONDALIA

6' Petals 5; disk thick, ± obscuring ovary in early flower ..... ZIZIPHUS

 

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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://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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