Tradescantia crassifolia |
Tradescantia subacaulis |
|
---|---|---|
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 |
TX; Mexico; to Central America (Guatemala)
|
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 | ||
Name authority | Cavanilles: Icon. 1: 54, plate 75. (1791) | Bush |
Web links |