Species profile

Genus Vitis
Species V. girdiana
Common name Valley Grape, Desert wild grape
Distribution Southern California and the islands
Chromosome number 2n = 38
Morphological Description

Plants high climbing, sparsely branched. Branches: bark exfoliating in plates; nodal diaphragms 1.5–3 mm thick; branchlets terete to slightly angled, tomentose, tomentum usually persistent, growing tips not enveloped by unfolding leaves; tendrils along length of branchlets, persistent, branched, tendrils (or inflorescences) at only 2 consecutive nodes; nodes not red-banded. Leaves: stipules usually 3.5+ mm; petiole 1/2 to ± equaling blade; blade cordate, 5–10 cm, usually unlobed, sometimes 3-shouldered, rarely shallowly 3-lobed, apex acute to short acuminate, abaxial surface not glaucous, moderately to densely tomentose, visible through hairs, adaxial surface sparsely to moderately tomentose, glabrescent. Inflorescences 8–18 cm. Flowers functionally unisexual. Berries dark purple to black, slightly or not glaucous, globose, 4–6 mm diam., skin separating from pulp; lenticels absent.

Genome assembly


Phylogenetic tree

Population structure



Name: Berry weight   Scale: g


Author Title Journal Year PMID
Liang Z, et al. Whole-genome resequencing of 472 Vitis accessions for grapevine diversity and demographic history analyses Nature Communications  2019 30867414