Tradescantia pallida |
Tradescantia paludosa |
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purple queen |
confederate spiderwort |
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Habit | Herbs, perennial, succulent. | Herbs, erect, ascending, or occasionally decumbent, rarely rooting at nodes. |
Stems | suffused with purplish violet. |
often much branched distally, 15–60 cm; internodes not at all to slightly glaucous, glabrous. |
Leaves | spirally arranged; blade not variegated, suffused with purplish violet, lanceolate-oblong to oblong-elliptic, (4–)7–15 × 1.5–3 cm (distal leaf blades wider or narrower than sheaths when sheaths opened, flattened), base symmetric, rounded to broadly cuneate, margins ciliate or ciliolate, apex acute, glabrous or glabrescent. |
spirally arranged, sessile, forming nearly right angle with stem, straight; blade narrowly oblong-elliptic to linear-lanceolate, 4–11(–20) × 0.4–1.2 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), base often constricted, apex acuminate, not at all to slightly glaucous, glabrous. |
Inflorescences | terminal, often becoming leaf-opposed, pedunculate; peduncles (3.5–)4–13 cm; bracts similar to leaves but usually greatly reduced. |
terminal, often axillary; bracts foliaceous. |
Flowers | subsessile; pedicels 4–9 mm, densely white-pilose at summit; sepals distinct, 7–10 mm, pilose basally; petals ± connate at base, pink, clawed, 1.5–2 cm; stamens epipetalous; filaments very sparsely bearded. |
distinctly pedicillate; pedicels 0.8–1.5 cm, glabrous; sepals 0.6–0.8 mm, glabrous or with apical tuft of eglandular hairs; petals distinct, pale blue, ovate, not clawed, 1.3–1.5 cm; stamens free; filaments bearded. |
Capsules | 3.5 mm, glabrous. |
2–5 mm. |
Seeds | 2.5–3 mm. |
2–3 mm. |
2n | = 24 (Mexico). |
= 12. |
Tradescantia pallida |
Tradescantia paludosa |
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Phenology | Flowering summer–fall. | Flowering spring (Mar–May), sporadically to early fall. |
Habitat | Landfill and old home sites | Alluvial bottoms and swamps, forests, roadsides, railroad rights-of-way, fields, ditches, and lawns |
Distribution |
FL; LA; Mexico; native [Introduced in North America]
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AL; AR; FL; LA; MS; TX |
Discussion | Tradescantia paludosa is clearly Anderson and Woodson's weakest species, and D. T. MacRoberts (1979) may be correct in treating it as a variety of Trandescantia ohiensis. In view of its importance as a research tool, however, I prefer to maintain T. paludosa as a species until a more rigorous analysis of its variation is published. Plants of this species do not seem to require a winter dormancy, hence they can be cultivated in greenhouses year-round. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Setcreasea pallida, Setcreasea purpurea | T. ohiensis var. paludosa |
Name authority | (Rose) D. R. Hunt: Kew Bull. 30: 452. (1975) | E. S. Anderson & Woodson: Contr. Arnold Arbor. 9: 83; plate 2, fig. 4; plate 4, fig. 6; plate 11;. (1935) |
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