familyVitaceae
genusAmpelopsis
Show Lower Taxa
Difference between revisions of "Ampelopsis"
Fl. Bor.-Amer. 1: 159. 1803.
Etymology: Greek ampelos, grapevine, and -opsis, similarity
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Revision as of 20:10, 27 May 2020
Lianas, climbing by tendrils, synoecious. Branches: bark adherent; pith white, continuous through nodes; tendrils 2-branched, without adhesive discs. Leaves simple or palmately compound. Inflorescences usually bisexual, leaf-opposed, corymblike cymes, sometimes compound. Flowers bisexual; calyx saucer-shaped, indistinctly undulate; petals 5, distinct; nectary adnate proximally to base of ovary, free distally, cup-shaped, slightly lobed; stamens 5; style cylindric, elongate. Berries rose violet, purple, blue, black, orange, or yellow. Seeds 1–4 per fruit. x = 10.
Distribution
North America, Mexico, Asia, temperate to tropical regions.
Discussion
Species ca. 15 (3 in the flora).
Selected References
None.
Key
| 1 | Leaves palmately compound, or so deeply lobed as to appear compound, leaflets or leaf lobes (3 or). | Ampelopsis aconitifolia |
| 1 | Leaves simple. | > 2 |
| 2 | Branchlets glabrous, green; leaf blades usually unlobed, sometimes shallowly 3-shouldered. | Ampelopsis cordata |
| 2 | Branchlets usually sparsely puberulent, sometimes becoming glabrate, purplish green; leaf blades usually shallowly, sometimes deeply, 3(–5)-lobed. | Ampelopsis glandulosa |