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inchplant, wandering-jew

Tharp's spiderwort

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

absent or 2–7 cm in flower, to 20 cm in fruit, shaggy pilose to villous.

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.

blade green, linear-lanceolate, 4–30 × 0.9–2.5 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), margins frequently clear or edged with rose, laxly and irregularly pilose or villous.

Inflorescences

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

terminal, solitary;

bracts foliaceous, well developed, not saccate, sparsely to densely pilose.

Flowers

subsessile;

sepals basally connate, 4–5 mm;

petals pink, clawed, claws basally connate forming tube;

stamens epipetalous;

filaments bearded.

distinctly pedicillate;

pedicels 4–6 cm, laxly pilose;

sepals usually purple or rose-colored (rarely pale green), not inflated, 1.2–1.6 cm, uniformly eglandular-pilose;

petals distinct, deep rose or purple, or frequently blue, broadly ovate, not clawed, 1.8–2.2 cm;

stamens free;

filaments bearded.

Capsules

3-locular;

locules 2-seeded.

5–7 mm.

Seeds

2–3 mm.

2n

= 24.

Tradescantia zebrina

Tradescantia tharpii

Phenology Flowering fall–winter (Sep–Feb). Flowering spring.
Habitat Hummocks and weedy places Clay soils of rocky prairies and open woodlands
Distribution
from FNA
FL; native; tropical America [Introduced in North America]
[BONAP county map]
from FNA
KS; MO; OK; TX
[WildflowerSearch map]
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. pedicellata, T. pinetorum, T. reverchonii, T. roseolens, T. spathacea, T. subacaulis, T. subaspera, T. virginiana, T. wrightii, T. zebrina
Synonyms Zebrina pendula
Name authority Hort ex Bosse: Vollstandiges Handb. Blumengart. 4: 655. (1849) E. S. Anderson & Woodson: Contr. Arnold Arbor. 9: 70; plate 4, fig. 9; plate 9; map 7. (1935)
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