Tragia brevispica

Engelmann & A. Gray

Boston J. Nat. Hist. 5: 262. 1845.

Common names: Short-spike noseburn
Synonyms: Tragia nepetifolia var. scutellariifolia (Scheele) Müller Arg. T. nepetifolia var. teucriifolia (Scheele) Müller Arg. T. scutellariifolia Scheele T. teucriifolia Scheele
Treatment appears in FNA Volume 12. Treatment on page 186. Mentioned on page 184, 185, 187.
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Herbs or vines, 2–12 dm. Stems decumbent, twining, or erect, light green, apex usually flexuous. Leaves: petiole 6–38 mm; blade triangular to cordate, 1.9–6 × 1.5–3.5 cm, base truncate to cordate, margins serrate to crenate, apex acute. Inflorescences terminal (often appearing leaf-opposed), glands absent, staminate flowers 2–8 [–10] per raceme; staminate bracts 1–1.8 mm. Pedicels: staminate 0.7–2 mm, persistent base 0.4–1.5 mm; pistillate 2–4 mm in fruit. Staminate flowers: sepals 3–4 [–5], green, 1–1.5 mm; stamens 3–4 (–5), filaments 0.3–0.6 mm. Pistillate flowers: sepals ovate, 1.3–3.5 mm; styles connate 1/3 length; stigmas subpapillate to undulate. Capsules 6.5–7 mm wide, often 1 carpel maturing. Seeds dark-brown, 2.5–3.8 mm. 2n = 44.


Phenology: Flowering spring–fall; fruiting late summer–fall.
Habitat: Open forests, scrublands, disturbed roadsides, open fields, often on loam and clay soils.
Elevation: 10–500 m.

Distribution

La., Okla., Tex., Mexico (Nuevo León)

Discussion

The leaves of Tragia brevispica are highly variable and frequently resemble those of T. ramosa, which differs in having smooth stigmas and leaf blades much longer than wide. The presence of 1-carpellate fruit in T. brevispica is unique in Tragia in the flora area.

Selected References

None.

Lower Taxa

None.

"elongated" is not a number."connate" is not a number. "distinct" is not a number."/3" is not declared as a valid unit of measurement for this property.

... more about "Tragia brevispica"
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
flexuous +
Roberto J. Urtecho +
Engelmann & A. Gray +
persistent +
truncate +  and cordate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
1.9 cm19 mm <br />0.019 m <br /> (6 cm60 mm <br />0.06 m <br />) +
triangular;cordate +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Short-spike noseburn +
La. +, Okla. +, Tex. +  and Mexico (Nuevo León) +
10–500 m. +
pistillate +  and staminate +
subtending +
Open forests, scrublands, disturbed roadsides, open fields, often on loam and clay soils. +
leaf-opposed +, terminal +  and axillary +
palmate +  and pinnate +
deciduous +
palmate +  and pinnate +
entire +, dentate +  and serrate +
serrate +  and crenate +
pistillate +  and staminate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
connate;distinct +
0.6 cm6 mm <br />0.006 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
Flowering spring–fall +  and fruiting late summer–fall. +
Boston J. Nat. Hist. +
dark-brown +
globose +  and ovoid +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
not petaloid +
connate +  and distinct +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
connate +  and distinct +
light green +
subpapillate +
undulate +
multifid +  and 2-fid +
Tragia nepetifolia var. scutellariifolia +, T. nepetifolia var. teucriifolia +, T. scutellariifolia +  and T. teucriifolia +
Tragia brevispica +
species +