Jepson eFlora
Key to families | Table of families and genera

Key to Vitis

View taxon page for Vitis

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

1. Flower bisexual; fruit spheric to ovoid, skin adherent to pulp; stem hairy, generally glabrous in age ..... V. vinifera

1' Flower unisexual; fruit spheric or 0, skin separating from pulp; stem ± tomentose or glabrous

2. Leaf reniform, glabrous, ± folded at midrib; stem climbing or not, < 1 m ..... [V. rupestris]

2' Leaf cordate to reniform, ± tomentose, not folded at midrib; stem climbing, > 1 m

3. Fruit purple, glaucous, generally > 8 mm wide if seeds 3–4; round structure opposite seed attachment scar generally raised; stipules generally < 3.5 mm; stem tomentose when young, less so in age, nodal partitions generally 3–4 mm thick ..... V. californica

3' Fruit black, ± not glaucous, generally < 8 mm wide if seeds 3–4; round structure opposite seed attachment scar generally sunken; stipules generally > 3.5 mm; stem densely tomentose in youth, ± remaining so in age, nodal partitions generally 2–3 mm thick ..... V. girdiana

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [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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