Tradescantia spathacea |
Tradescantia leiandra |
|
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boat-lily, moses-in-the-cradle, oyster-plant |
canyon spiderwort |
|
Habit | Herbs, erect or ascending, rarely rooting at nodes. | |
Roots | clustered, fibrous-thickened. |
|
Stems | unbranched, short. |
sparsely branched, 30–50 cm, tufted, glabrous. |
Leaves | 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. |
spirally arranged, distant; blade not variegated, narrowly lanceolate, 7.5–16 × 1–2.5 cm (distal leaf blades wider or narrower than sheaths when sheaths opened, flattened), base symmetric, rounded to broadly cuneate, margins smooth or ciliate-scabrous, apex acuminate, glabrous to sparsely pubescent. |
Inflorescences | axillary, sessile, or pedunculate in axils well below shoot apex, cymes enclosed in pairs of boat-shaped spathes. |
terminal; bracts very unlike proximal stem leaves, connate, ovate-lanceolate, 2.4–4.5 cm, base cordate, somewhat dilated. |
Flowers | distinctly pedicillate; pedicels glabrous; sepals distinct, white, 3–6 mm, glabrous; petals distinct, white, ovate, not clawed; stamens free; filaments bearded. |
subsessile; pedicels densely covered with white, long, eglandular hairs or occasionally only with colorless, short, glandular hairs; sepals distinct, usually glandular-pubescent as well as villous; petals purplish red, clawed, claws connate basally forming tube; stamens epipetalous; filaments glabrous. |
Capsules | 3- or (by abortion) 2-locular, 3–4 mm. |
3.5 mm, glabrous. |
Seeds | 1 per locule, 3–4 mm. |
1.5 mm. |
2n | = 12 (Belize). |
|
Tradescantia spathacea |
Tradescantia leiandra |
|
Phenology | Flowering winter (Jan). | Flowering summer–fall (Jul–Oct). |
Habitat | Occasionally escaped to hammocks and weedy places | Moist, rocky places, on ledges, among shrubs and in canyons |
Distribution |
FL; Mexico; Central America; West Indies [Introduced in North America] |
TX; Mexico (Coahuila, Nuevo Leon) |
Discussion | Tradescantia spathacea is native to southern Mexico, Central America, and the West Indies. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The plants from the Capote Falls region of Presidio County, Texas have pedicels with short, colorless, glandular hairs instead of long, white, eglandular hairs and were separated as Tradescantia leiandra var. glandulosa Correll (D. S. Correll 1968). (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 | Setcreasea leiandra |
Name authority | Swartz: Prodr. 57. (1788) | Torrey: in W. H. Emory, Report on the United States and Mexican Boundary Survey, ... 2(1): 224. (1859) |
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