Tradescantia pinetorum |
Tradescantia spathacea |
|
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pinewoods spiderwort |
boat-lily, moses-in-the-cradle, oyster-plant |
|
Habit | Herbs, erect to ascending, rarely rooting at nodes. | Herbs, erect or ascending, rarely rooting at nodes. |
Roots | sometimes tuberous. |
|
Stems | sparsely branched, 8–39 cm, scabridulous or rarely glabrescent. |
unbranched, short. |
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; blade usually abaxially purple, adaxially green, strap-shaped, to 35 × 5 cm (distal leaf blades wider or narrower than sheaths when sheaths opened, flattened), leathery, succulent, glabrous. |
Inflorescences | terminal, solitary, or frequently with 1–3 axillary inflorescences from distal nodes; bracts foliaceous. |
axillary, sessile, or pedunculate in axils well below shoot apex, cymes enclosed in pairs of boat-shaped spathes. |
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. |
distinctly pedicillate; pedicels glabrous; sepals distinct, white, 3–6 mm, glabrous; petals distinct, white, ovate, not clawed; stamens free; filaments bearded. |
Capsules | 3–4 mm. |
3- or (by abortion) 2-locular, 3–4 mm. |
Seeds | 1.5–2 mm; hilum much shorter than seed. |
1 per locule, 3–4 mm. |
2n | = 12 (Belize). |
|
Tradescantia pinetorum |
Tradescantia spathacea |
|
Phenology | Flowering summer–fall (Jul–Sep). | Flowering winter (Jan). |
Habitat | Moist canyons and stream banks | Occasionally escaped to hammocks and weedy places |
Elevation | 1700–3000 m (5600–9800 ft) | |
Distribution |
AZ; NM; Mexico (Chihuahua, Durango, Sonora)
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FL; Mexico; Central America; West Indies [Introduced in North America] |
Discussion | Tradescantia spathacea is native to southern Mexico, Central America, and the West Indies. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | Commelinaceae > Tradescantia | Commelinaceae > Tradescantia |
Sibling taxa | ||
Synonyms | Rhoeo discolor, Rhoeo spathacea | |
Name authority | Greene: Erythea 1: 247. (1893) | Swartz: Prodr. 57. (1788) |
Web links |