Flora of North America species comparison

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Vitis mustangensis

Vitis ×champinii

mustang grape

Champin's grape
Habit Plants high climbing, sparsely branched. Plants moderate to high climbing, sparsely branched.
Branches

bark exfoliating in shreds;

nodal diaphragms 1.5–3 mm thick;

branchlets subterete to terete, densely to sparsely tomentose, 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.

bark tardily exfoliating in shreds;

nodal diaphragms 1.5–2.5 mm thick;

branchlets terete, sparsely arachnoid, becoming glabrate, 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 1.5–4 mm;

petiole 1/2–3/4 blade;

blade cordate to nearly reniform, 6–14 cm, usually unlobed but sometimes 3-shouldered or deeply 3–5 lobed, apex acute to obtuse, abaxial surface not glaucous, densely white to rusty tomentose, concealed (except sometimes veins) by hairs, adaxial surface floccose to glabrate.

stipules 2–5.5 mm;

petiole 1/2 blade;

blade usually cordate, sometimes nearly reniform, 5–15 cm, usually 3-shouldered to very shallowly 3-lobed, apex acute to short acuminate, abaxial surface not glaucous, sparsely arachnoid to glabrate, not hirtellous, visible through hairs, adaxial surface usually glabrous.
Inflorescences

4–10 cm.

3–7 cm.
Flowers

functionally unisexual.

functionally unisexual.
Berries

usually black, sometimes dark red, slightly or not glaucous, globose, 12+ mm diam., skin separating from pulp;

lenticels absent.

black, usually not, sometimes very slightly, glaucous, globose, 12+ mm diam., skin separating from pulp;

lenticels absent.
2n

= 38.

= 38.

Vitis mustangensis

Vitis ×champinii
Phenology Flowering Apr–early Jun; fruiting Aug–Sep. Flowering Apr–May; fruiting Jul–Aug.
Habitat Woodland edges, fencerows, thickets, lowland woods, disturbed areas. Well drained, calcareous soils.
Elevation 0–700 m. (0–2300 ft.) 200–700 m. (700–2300 ft.)
Distribution
from FNA
AL; LA; MS; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

In several early publications (for example, T. V. Munson 1909), Vitis mustangensis was known as V. candicans Engelmann ex A. Gray. M. O. Moore (1991) argued that the name V. candicans is ambiguous and not identifiable with any species based on the original description, making the more recent name V. mustangensis the valid and legitimate one for this species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Vitis ×champinii is found on and adjacent to the Edwards Plateau and is a hybrid between V. mustangensis and V. rupestris; it is now rare in nature (B. L. Comeaux 1987).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 10. FNA vol. 12, p. 12.
Parent taxa Vitaceae > Vitis > subg. Vitis Vitaceae > Vitis > subg. Vitis
Sibling taxa
V. acerifolia, V. aestivalis, V. arizonica, V. californica, V. cinerea, V. girdiana, V. labrusca, V. monticola, V. palmata, V. riparia, V. rotundifolia, V. rupestris, V. shuttleworthii, V. vinifera, V. vulpina, V. ×champinii, V. ×doaniana, V. ×novae-angliae
V. acerifolia, V. aestivalis, V. arizonica, V. californica, V. cinerea, V. girdiana, V. labrusca, V. monticola, V. mustangensis, V. palmata, V. riparia, V. rotundifolia, V. rupestris, V. shuttleworthii, V. vinifera, V. vulpina, V. ×doaniana, V. ×novae-angliae
Synonyms V. candicans var. diversa, V. mustangensis var. diversa
Name authority Buckley: Proc. Acad. Nat. Sci. Philadelphia 13: 451. (1862) Planchon: Vigne Amér. Vitic. Eur. 6: 22. (1882)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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