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leatherleaf spiderwort

stemless spiderwort

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

tuberous, thick.

thick, brownish-tomentose.

Stems

unbranched or sparsely branched, arachnoid-villous.

spreading, diffusely branched, particularly at base, 10–30 cm, arachnoid-villous or rarely nearly glabrescent.

Leaves

2-ranked, narrowing toward shoot apex;

blade lanceolate-elliptic to ovate, 4–15 × 2–3.5 cm (distal leaf blades wider or narrower than sheaths when sheaths opened, flattened), base cordate-clasping, sparsely pilose to densely arachnoid-villous.

relatively lax and flaccid;

blade deep green, linear-lanceolate, 10–18 × 0.5–1.5 cm (distal leaf blades equal to or narrower than sheaths when sheaths opened, flattened), ± arachnoid-villous as on stems.

Inflorescences

terminal, 1–4 axillary, sessile in axils of distal reduced leaves, boat-shaped spathes absent.

terminal, solitary, often with axillary, pedunculate inflorescences from distal nodes;

bracts foliaceous, similar to leaves in form, ± arachnoid-villous.

Flowers

distinctly pedicillate;

pedicels 0.6–1.4 cm, densely arachnoid-villous;

sepals 6.5–8 mm, pilose to densely arachnoid-pubescent;

petals distinct, rose-purple to bluish, not clawed, 10–15 mm;

stamens free;

filaments bearded.

violet-scented; distinctly pedicillate;

pedicels 2–3 cm, puberulent or pilose with mixed glandular, eglandular hairs;

sepals green or suffused with rose or purple, 7–8 mm, pubescent with mixture of glandular, eglandular hairs;

petals distinct, bright blue, broadly ovate, not clawed, 13–14 mm;

stamens free;

filaments bearded.

Capsules

3.5–4 mm.

5–6 mm.

Seeds

2 mm.

2–3 mm;

hilum as long as seed.

2n

= 12, 24, 24+ (Mexico).

= 12.

Tradescantia crassifolia

Tradescantia subacaulis

Phenology Flowering summer–early fall. Flowering spring (Mar–Jun).
Habitat Specific habitat unkown Sandy soil
Distribution
from FNA
TX; Mexico; to Central America (Guatemala)
[WildflowerSearch map]
[BONAP county map]
from FNA
TX
Discussion

Although not recorded in any U.S. flora or checklist, Tradescantia crassifolia has been added to the flora based on an old collection from the Chenati Mountains in Texas. Another specimen labeled New Mexico is considered less credible.

(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. 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. 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. ozarkana, T. pallida, T. paludosa, T. pedicellata, T. pinetorum, T. reverchonii, T. roseolens, T. spathacea, T. subaspera, T. tharpii, T. virginiana, T. wrightii, T. zebrina
Name authority Cavanilles: Icon. 1: 54, plate 75. (1791) Bush
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