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longleaf spiderwort

Ozark spiderwort

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

thin, fibrous, 0.5–1(–2) mm thick.

Stems

unbranched or sparsely branched, 19–60 cm;

internodes puberulent with glandular or eglandular hairs, rarely pilose or glabrous.

not flexuous, 10–50 cm;

internodes glabrous to pilose.

Leaves

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.

spirally arranged, sessile;

blade silvery or gray-green, lanceolate to linear-lanceolate or linear-oblong, 8–28 × 1–6 cm (distal leaf blades wider than sheaths when sheaths opened, flattened), base ± rounded to cuneate, apex acuminate, ± glaucous, usually glabrous.

Inflorescences

terminal, often axillary;

bracts foliaceous.

all or mostly terminal;

bracts foliaceous.

Flowers

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.

distinctly pedicillate;

pedicels 2–3.2 cm, glandular-pilosulose;

sepals 6–12 mm, sparsely to densely glandular-pilosulose;

petals distinct, white or pale pink to pale lavender, broadly ovate, not clawed, 1.2–1.6 cm;

stamens free.

Capsules

5–7 mm.

6–8 mm.

Seeds

3–4 mm.

3–4 mm.

2n

= 24.

= 12, 24.

Tradescantia roseolens

Tradescantia ozarkana

Phenology Flowering late winter–summer (Feb–Aug). Flowering spring (Apr–May).
Habitat Oak and oak-palmetto scrub, oak woods, pine woods, hammocks, sandhills, roadsides, and open areas, sandy soil Rich woods, mainly on rocky slopes and along cliffs, occasionally in bottomlands
Distribution
from FNA
AL; FL; GA; SC
[WildflowerSearch map]
[BONAP county map]
from FNA
AR; MO; OK
[WildflowerSearch map]
[BONAP county map]
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.)

Tradescantia ozarkana is endemic to the Ozarks.

(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. spathacea, T. subacaulis, T. subaspera, T. tharpii, T. virginiana, T. wrightii, T. zebrina
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. pallida, T. paludosa, T. pedicellata, T. pinetorum, T. reverchonii, T. roseolens, T. spathacea, T. subacaulis, T. subaspera, T. tharpii, T. virginiana, T. wrightii, T. zebrina
Name authority Small: Bulletin of the Torrey Botanical Club 51:379. (1924) E. S. Anderson & Woodson: Contr. Arnold Arbor. 9: 56, plate 12, map 3. (1935)
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