Tradescantia pinetorum |
Tradescantia roseolens |
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pinewoods spiderwort |
longleaf spiderwort |
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Habit | Herbs, erect to ascending, rarely rooting at nodes. | Herbs, erect or ascending, rarely rooting at nodes. |
Roots | sometimes tuberous. |
thin, fibrous, 0.5–1(–2) mm thick. |
Stems | sparsely branched, 8–39 cm, scabridulous or rarely glabrescent. |
unbranched or sparsely branched, 19–60 cm; internodes puberulent with glandular or eglandular hairs, rarely pilose or glabrous. |
Leaves | blade linear-lanceolate, 1–10 × 0.15–0.8 cm (distal leaf blades wider or narrower than sheaths when sheaths opened, flattened), firmly membranaceous, glaucous, glabrous. |
spirally arranged, sessile; blade linear-lanceolate, 10–42 × 0.5–1.6 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), apex acuminate, somewhat glaucous, puberulent to pilosulose, rarely glabrescent. |
Inflorescences | terminal, solitary, or frequently with 1–3 axillary inflorescences from distal nodes; bracts foliaceous. |
terminal, often axillary; bracts foliaceous. |
Flowers | distinctly pedicillate; pedicels 0.8–1 cm, glandular-puberulent; sepals frequently suffused with red, glaucous, 4–6 mm, glandular-puberulent; petals distinct, bright blue to rose and purple, not clawed, 9–12 mm; stamens free; filaments bearded. |
rose-scented, distinctly pedicillate; pedicels 1–2.8 cm, glandular-puberulent; sepals 6–12 mm, glandular-puberulent, glandular hairs numerous and conspicuous, often mixed with eglandular hairs, usually with apical tuft of eglandular hairs, all hairs less than 1mm; petals distinct, broadly deep blue to magenta, ovate, not clawed, 10–14 mm; stamens free; filaments bearded. |
Capsules | 3–4 mm. |
5–7 mm. |
Seeds | 1.5–2 mm; hilum much shorter than seed. |
3–4 mm. |
2n | = 24. |
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Tradescantia pinetorum |
Tradescantia roseolens |
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Phenology | Flowering summer–fall (Jul–Sep). | Flowering late winter–summer (Feb–Aug). |
Habitat | Moist canyons and stream banks | Oak and oak-palmetto scrub, oak woods, pine woods, hammocks, sandhills, roadsides, and open areas, sandy soil |
Elevation | 1700–3000 m (5600–9800 ft) | |
Distribution |
AZ; NM; Mexico (Chihuahua, Durango, Sonora)
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AL; FL; GA; SC
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Discussion | Although E. Anderson and R. E. Woodson Jr. (1935) do not report eglandular hairs on the sepals in Tradescantia roseolens, they are present in nearly all specimens. While some eglandular hairs might be the result of hybridization, in general they seem to be part of the normal variation in this species. The illegitimate name Tradescantia longifolia Small (a later homonym of T. longifolia Sessé and Mociño 1894) has been used for this species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | Commelinaceae > Tradescantia | Commelinaceae > Tradescantia |
Sibling taxa | ||
Name authority | Greene: Erythea 1: 247. (1893) | Small: Bulletin of the Torrey Botanical Club 51:379. (1924) |
Web links |