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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


Tree, shrub [vine]. Stem: branches alternate, flexible or stiff, ± 2–3-ranked; twigs ± pendent, zigzag. Leaf: clustered on short-shoots or not, deciduous or not, petioled; stipules ± spine-like or not, unequal; blade elliptic to obovate, ± entire to serrate, 1–5-ribbed from base. Inflorescence: cyme or small panicle. Flower: hypanthium surrounding base of ovary; sepals 5; petals 5, < to > sepals; stamens 5; disk thick, ± obscuring ovary in early flower; ovary widely attached at base, chambers 2, each 1-ovuled, stigma 2-lobed. Fruit: drupe, stone 1.
100 species: generally tropics. (Latin: from Arabic "zizouf," common jujube, Ziziphus zizyphus) [Islam & Simmons 2006 Syst Bot 31:826–842]
Unabridged references: [Johnston 1963 Amer J Bot 50:1020–1027]

Key to Ziziphus

1. Tree, leaves >= 25 mm, blade shiny adaxially ..... Z. zizyphus

1' Shrub; leaves <= 25 mm, blade not shiny adaxially

2. Fruit 7–10 mm, blue-black, not beaked ..... Z. obtusifolia var. canescens

2' Fruit 10–25 mm, brown, beaked ..... Z. parryi var. parryi


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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