Parthenocissus tricuspidata |
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Boston-ivy, Japanese ivy, vigne vierge tricuspidée |
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Habit | Lianas, high climbing. |
Leaves | usually simple, sometimes palmately compound on older plants; petiole usually longer than, sometimes ± equaling, blade; blade lustrous adaxially, ovate to cordate-ovate or cordate-orbiculate, 4.5–17 × 4–16 cm, 3-lobed or leaflets 3, thin, herbaceous, base truncate to slightly cordate, margins crenate to crenate-serrate, apex acute to short-acuminate, surfaces glabrous or abaxial veins puberulent. |
Inflorescences | ± divergently branching, without distinct central axis. |
Flowers | yellowish green. |
Berries | globose, 5–8 mm diam. 2n = 40. |
Tendrils | 5–10-branched, with adhesive discs. |
Parthenocissus tricuspidata |
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Phenology | Flowering Jun–Jul; fruiting Sep–Oct. |
Habitat | Thickets, forest edges, disturbed places. |
Elevation | 50–500 m. (200–1600 ft.) |
Distribution |
CT; DC; IA; IL; IN; KY; MA; ME; MO; NC; NE; NJ; NY; OH; PA; SC; TN; ON; e Asia [Introduced in North America]
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Discussion | Parthenocissus tricuspidata has escaped from cultivation and become locally naturalized throughout much of eastern North America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 16. |
Parent taxa | Vitaceae > Parthenocissus |
Sibling taxa | |
Synonyms | Ampelopsis tricuspidata |
Name authority | (Siebold & Zuccarini) Planchon: in A. L. P. P. de Candolle and C. de Candolle, Monogr. Phan. 5: 452. (1887) |
Web links |