Tradescantia humilis

Rose

Contributions from the U. S. National Herbarium 5: 204. 1899.

Endemic
Treatment appears in FNA Volume 22.

Herbs, erect or ascending, rarely rooting at nodes. Roots tuberous in part, not brownish-tomentose. Stems spreading, diffusely branched, particularly at base, 0.5–20 (–45) cm, densely pubescent to glabrescent. Leaves somewhat recurved or falcate; blade deep green, or paler and somewhat glaucous, linear-lanceolate, 11–20 × 1–2 cm (distal leaf-blades equal to or narrower than sheaths when sheaths opened, flattened), margins usually tinged with purple, crisped, puberulent to glabrescent. Inflorescences terminal, solitary, or more frequently also axillary and pedunculate from distal nodes; bracts foliaceous, similar to leaves in form, puberulent to glabrescent. Flowers distinctly pedicillate; pedicels 1.5–2.5 cm, puberulent or pilose with mixed glandular, eglandular hairs; sepals dull green or occasionally edged or suffused with purple, 9–11 mm, pubescent with mixed glandular, eglandular hairs; petals distinct, bright blue or occasionally pink, broadly ovate, not clawed, 11–19 mm; stamens free; filaments bearded. Capsules 6–7 mm. Seeds 2–3 mm; hilum as long as seed. 2n = 12.


Phenology: Flowering spring (Mar–Jun).
Habitat: Sandy and rocky soil, formerly also in rich black soil at the edge of the coastal plain, now more commonly in disturbed sites, such as roadsides, fencerows, and railroad rights-of-way

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Tradescantia humilis"
Robert B. Faden +
petiolate +  and sessile +
paler +, green +  and deep +
11 cm110 mm <br />0.11 m <br /> (20 cm200 mm <br />0.2 m <br />) +
linear-lanceolate +
succulent +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
puberulent;glabrescent +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
umbel-like +
Sandy and rocky soil, formerly also in rich black soil at the edge of the coastal plain, now more commonly in disturbed sites, such as roadsides, fencerows, and railroad rights-of-way +
2-ranked +  and arranged +
cauline +  and basal +
falcate +
tinged with purple +
puberulent +  and glabrescent +
differentiated +
pilose +  and puberulent +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
pink +  and bright blue +
distinct +
not clawed +  and ovate +
unequal +
1.1 cm11 mm <br />0.011 m <br /> (?) +  and 1.9 cm19 mm <br />0.019 m <br /> (?) +
Flowering spring (Mar–Jun). +
Contributions from the U. S. National Herbarium +
not brownish-tomentose +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
suffused with purple +  and green +
distinct +
subequal +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
staminodial +
20 cm200 mm <br />0.2 m <br /> (45 cm450 mm <br />0.45 m <br />) +
densely pubescent +  and glabrescent +
0.5 cm5 mm <br />0.005 m <br /> (20 cm200 mm <br />0.2 m <br />) +
not +  and enlarged +
slender +
Rhoeo +, Setcreasea +  and Zebrina +
Tradescantia humilis +
Tradescantia +
species +
ascending +  and erect +