Flora of North America species comparison

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Vitis mustangensis

Vitis shuttleworthii

mustang grape

Calloosa or leatherleaf or Florida grape, calloose grape
Habit Plants high climbing, sparsely branched. Plants moderately 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 exfoliating in shreds;

nodal diaphragms 2.5–6 mm thick, sometimes continuing halfway into internode;

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.
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 less than 1 mm;

petiole 1/2–3/4 blade;

blade broadly cordate to nearly reniform, 4–12 cm, usually unlobed, sometimes 3-shouldered, infrequently 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.
Inflorescences

4–10 cm.

4–10 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.

dark red to purple-black, slightly or not glaucous, globose, 12+ mm diam., skin separating from pulp;

lenticels absent.
2n

= 38.

= 38.

Vitis mustangensis

Vitis shuttleworthii
Phenology Flowering Apr–early Jun; fruiting Aug–Sep. Flowering Apr–early May; fruiting Jun–Aug.
Habitat Woodland edges, fencerows, thickets, lowland woods, disturbed areas. Well-drained pinelands, thickets.
Elevation 0–700 m. (0–2300 ft.) 0–100 m. (0–300 ft.)
Distribution
from FNA
AL; LA; MS; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
FL
[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 shuttleworthii is endemic to peninsular Florida and apparently is the closest relative of V. mustangensis.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 10. FNA vol. 12, p. 10.
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. vinifera, V. vulpina, V. ×champinii, V. ×doaniana, V. ×novae-angliae
Synonyms V. candicans var. diversa, V. mustangensis var. diversa V. coriacea, V. candicans var. coriacea
Name authority Buckley: Proc. Acad. Nat. Sci. Philadelphia 13: 451. (1862) House: Amer. Midl. Naturalist 7: 129. (1921)
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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