Tradescantia zebrina |
Tradescantia virginiana |
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inchplant, wandering-jew |
Virginia spiderwort, éphémère de virginie |
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Habit | Herbs, decumbent. | Herbs, erect or ascending, rarely rooting at nodes. |
Roots | (1.5–)2–4 mm thick, fleshy. |
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Stems | 5–35 cm; internodes glabrous or occasionally distal internodes sparsely puberulent. |
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Leaves | 2-ranked; blade variegated, abaxially reddish purple, adaxially striped green and white, lanceolate-elliptic to ovate-elliptic, 3–9 × 1.5–3 cm (distal leaf blades wider or narrower than sheaths when sheaths opened, flattened), base oblique, cuneate, apex acute to acuminate. |
spirally arranged, sessile; blade linear-lanceolate, 13–37 × 0.4–2.5 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), apex acuminate, glabrous or occasionally puberulent. |
Inflorescences | terminal, consisting of pairs of sessile cymes enclosed in sheaths of spathaceous bracts, pedunculate; spathaceous bracts foliaceous, reduced. |
terminal and (rarely) axillary; bracts foliaceous, well developed, not saccate, sparsely to densely pilose. |
Flowers | subsessile; sepals basally connate, 4–5 mm; petals pink, clawed, claws basally connate forming tube; stamens epipetalous; filaments bearded. |
distinctly pedicillate; pedicels 1.2–3.5 cm, eglandular-pilose or puberulent; sepals ± inflated, 7–16 mm, uniformly eglandular-pilose; petals distinct, blue to purple, occasionally rose or white, broadly ovate, not clawed, 1.2–2 cm; stamens free; filaments bearded. |
Capsules | 3-locular; locules 2-seeded. |
4–7 mm. |
Seeds | 2–3 mm. |
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2n | = 12, 24. |
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Tradescantia zebrina |
Tradescantia virginiana |
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Phenology | Flowering fall–winter (Sep–Feb). | Flowering spring–summer (Mar–Jul). |
Habitat | Hummocks and weedy places | Woods, thickets, fields, roadsides and railroad rights-of-way |
Distribution |
FL; native; tropical America [Introduced in North America] |
AL; AR; CT; DC; DE; GA; IA; IL; IN; KY; MA; MD; ME; MI; MO; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; VA; VT; WI; WV; ON
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Discussion | The records from the northern parts of the range of Tradescantia virginiana may all represent garden escapes (E. Anderson 1954). The uncertainty about the records from Arkansas and Mississippi reflects the difficulty in identifying some specimens. The specimens in question come from areas in which T. hirsutiflora (but not T. virginiana) has been recorded (E. Anderson and R. E. Woodson Jr. 1935). The exact geographic boundaries between these putatively allopatric species are uncertain. D. T. MacRoberts (1980b) has made a useful contribution toward our knowledge of these species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 22. | FNA vol. 22, p. 179. |
Parent taxa | Commelinaceae > Tradescantia | Commelinaceae > Tradescantia |
Sibling taxa | ||
Synonyms | Zebrina pendula | T. brevicaulis |
Name authority | Hort ex Bosse: Vollstandiges Handb. Blumengart. 4: 655. (1849) | Linnaeus: Sp. Pl. 1: 288. (1753) |
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