Tradescantia zebrina |
Tradescantia humilis |
|
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inchplant, wandering-jew |
Texas spiderwort |
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Habit | Herbs, decumbent. | Herbs, erect or ascending, rarely rooting at nodes. |
Roots | tuberous in part, not brownish-tomentose. |
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Stems | spreading, diffusely branched, particularly at base, 0.5–20(–45) cm, densely pubescent to glabrescent. |
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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. |
somewhat recurved or falcate; blade deep green, or paler and somewhat glaucous, linear-lanceolate, 11–20 × 1–2 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), margins usually tinged with purple, crisped, puberulent to glabrescent. |
Inflorescences | terminal, consisting of pairs of sessile cymes enclosed in sheaths of spathaceous bracts, pedunculate; spathaceous bracts foliaceous, reduced. |
terminal, solitary, or more frequently also axillary and pedunculate from distal nodes; bracts foliaceous, similar to leaves in form, puberulent to glabrescent. |
Flowers | subsessile; sepals basally connate, 4–5 mm; petals pink, clawed, claws basally connate forming tube; stamens epipetalous; filaments bearded. |
distinctly pedicillate; pedicels 1.5–2.5 cm, puberulent or pilose with mixed glandular, eglandular hairs; sepals dull green or occasionally edged or suffused with purple, 9–11 mm, pubescent with mixed glandular, eglandular hairs; petals distinct, bright blue or occasionally pink, broadly ovate, not clawed, 11–19 mm; stamens free; filaments bearded. |
Capsules | 3-locular; locules 2-seeded. |
6–7 mm. |
Seeds | 2–3 mm; hilum as long as seed. |
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2n | = 12. |
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Tradescantia zebrina |
Tradescantia humilis |
|
Phenology | Flowering fall–winter (Sep–Feb). | Flowering spring (Mar–Jun). |
Habitat | Hummocks and weedy places | Sandy and rocky soil, formerly also in rich black soil at the edge of the coastal plain, now more commonly in disturbed sites, such as roadsides, fencerows, and railroad rights-of-way |
Distribution |
FL; native; tropical America [Introduced in North America] |
TX |
Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | Commelinaceae > Tradescantia | Commelinaceae > Tradescantia |
Sibling taxa | ||
Synonyms | Zebrina pendula | |
Name authority | Hort ex Bosse: Vollstandiges Handb. Blumengart. 4: 655. (1849) | Rose: Contributions from the U. S. National Herbarium 5: 204. (1899) |
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