Flora of North America species comparison

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Vitis mustangensis

Vitis acerifolia

mustang grape

bush or panhandle or mapleleaf grape, mapleleaf grape
Habit Plants high climbing, sparsely branched. Plants low to moderately high climbing, much 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 plates;

nodal diaphragms to 0.5(–1) mm thick;

branchlets terete, whitish arachnoid or glabrate, growing tips enveloped by unfolding leaves, sparsely to densely hairy;

tendrils along length of branchlets, soon deciduous if not attached to support, 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 3–6 mm;

petiole 1/2–2/3 blade;

blade broadly cordate, 7–12 cm, usually 3-shouldered to shallowly 3-lobed, apex usually short acuminate, abaxial surface not glaucous, sparsely arachnoid to glabrate, visible through hairs, veins sparsely hirtellous, adaxial surface slightly arachnoid to glabrate.
Inflorescences

4–10 cm.

3–7(–9) 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, heavily glaucous, globose, 8–12 mm diam., skin separating from pulp;

lenticels absent.
2n

= 38.

= 38.

Vitis mustangensis

Vitis acerifolia
Phenology Flowering Apr–early Jun; fruiting Aug–Sep. Flowering Apr–May; fruiting Jul–Aug.
Habitat Woodland edges, fencerows, thickets, lowland woods, disturbed areas. Stream and riverbanks, prairie ravines, alluvial floodplain woodlands, dunes, rocky slopes, fencerows.
Elevation 0–700 m. (0–2300 ft.) 200–2300 m. (700–7500 ft.)
Distribution
from FNA
AL; LA; MS; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; KS; NM; OK; 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.)
Source FNA vol. 12, p. 10. FNA vol. 12, p. 11.
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. 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. ×champinii, V. ×doaniana, V. ×novae-angliae
Synonyms V. candicans var. diversa, V. mustangensis var. diversa V. cordifolia var. solonis, V. longii, V. longii var. microsperma, V. nuevomexicana, V. solonis, V. solonis var. microsperma
Name authority Buckley: Proc. Acad. Nat. Sci. Philadelphia 13: 451. (1862) Rafinesque: Med. Fl. 2: 130, plate 99, fig. C. (1830)
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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