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inchplant, wandering-jew

Edwards Plateau spiderwort

Habit Herbs, decumbent. Herbs, erect or ascending, rarely rooting at nodes.
Roots

some tuberous, thick.

Stems

spreading and diffuse, much branched, mainly from base, pubescent with glandular hairs, eglandular hairs, or mixture.

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.

recurved and somewhat lax;

blade dark green to yellowish green, linear-lanceolate, mostly 20–30 × 0.5–1.0 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), sparsely to densely pubescent.

Inflorescences

terminal, consisting of pairs of sessile cymes enclosed in sheaths of spathaceous bracts, pedunculate; spathaceous bracts foliaceous, reduced.

terminal, solitary, or more commonly also with lateral, pedunculate inflorescences;

bracts foliaceous, similar to leaves in form, sparsely to densely pubescent.

Flowers

subsessile;

sepals basally connate, 4–5 mm;

petals pink, clawed, claws basally connate forming tube;

stamens epipetalous;

filaments bearded.

distinctly pedicillate;

pedicels 2.5–4.5 cm, densely pubescent with medium to long, glandular hairs;

sepals 6–11 mm, densely pubescent with glandular hairs like those of pedicels, occasionally with a few eglandular hairs;

petals distinct, pink to dark blue, broadly ovate, not clawed;

stamens free;

filaments bearded.

Capsules

3-locular;

locules 2-seeded.

Seeds

2–4 mm;

hilum as long as seed.

2n

= 12.

Tradescantia zebrina

Tradescantia pedicellata

Phenology Flowering fall–winter (Sep–Feb). Flowering spring.
Habitat Hummocks and weedy places Rocky soil
Distribution
from FNA
FL; native; tropical America [Introduced in North America]
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

Tradescantia pedicellata is a most unsatisfactory species. The species may have arisen as a hybrid between Tradescantia humilis and T. occidentalis and been recognized as a species because of its constant morphology and high pollen fertility (R. P. Celarier 1956). C. Sinclair (1967) concluded, however, that there was no evidence for the species' existence, and I have found it very difficult to recognize specimens that agree with the original description (no type has been located).

Tradescantia diffusa Bush, a name overlooked by E. Anderson and R. E. Woodson Jr. (1935), has been considered the correct name for this plant (D. T. MacRoberts 1978). After examining the type of T. diffusa, I concluded that it was conspecific with the type of T. humilis.

(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
T. bracteata, T. brevifolia, T. buckleyi, T. crassifolia, T. crassula, T. edwardsiana, T. ernestiana, T. fluminensis, T. gigantea, T. hirsuticaulis, T. hirsutiflora, T. humilis, T. leiandra, T. longipes, T. occidentalis, T. ohiensis, T. ozarkana, T. pallida, T. paludosa, T. pedicellata, T. pinetorum, T. reverchonii, T. roseolens, T. spathacea, T. subacaulis, T. subaspera, T. tharpii, T. virginiana, T. wrightii
T. bracteata, T. brevifolia, T. buckleyi, T. crassifolia, T. crassula, T. edwardsiana, T. ernestiana, T. fluminensis, T. gigantea, T. hirsuticaulis, T. hirsutiflora, T. humilis, T. leiandra, T. longipes, T. occidentalis, T. ohiensis, T. ozarkana, T. pallida, T. paludosa, T. pinetorum, T. reverchonii, T. roseolens, T. spathacea, T. subacaulis, T. subaspera, T. tharpii, T. virginiana, T. wrightii, T. zebrina
Synonyms Zebrina pendula
Name authority Hort ex Bosse: Vollstandiges Handb. Blumengart. 4: 655. (1849) Celarier: Field & Laboratory 24:6. (1956)
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