Descripcion
Subshrubs 0.8–1 m tall; branches pubescent to glandular-pubescent, covered with many short slender to stout short prickles throughout. Stipular prickles straight, 2–2.5 × 1 mm. Leaves 3- to 5-foliolate; petioles densely pubescent, armed with slender prickles, 6–15 cm; leaflets elliptic to widely elliptic, 5–10.5 × 2–5 cm, basally cuneate to attenuate, apically acute to acuminate, sessile, margin entire, ciliate, surface slightly pubescent to glabrescent adaxially, midrib and secondary veins puberulent, with prickles. Inflorescence of corymbiform racemes, terminal, 15–20 cm; floral bracts petiolate, petioles densely pubescent, with a pair of prickles at base, 8–10 mm, blade ovate, 10–35 × 7–15 mm, basally obtuse, apically acute, margin ciliate, puberulent on both sides. Flowers with pedicels 45–55 mm, densely pubescent; sepals linear-triangular, 9–10 × 1 mm, long-acuminate, margin ciliate, pubescent abaxially; petals oblong to oblanceolate, 15–23 × 3–8 mm, basally contracted into a claw, claw 5–7 mm, apically obtuse, purple, slightly puberulent-glandular abaxially; nectary conic, inconspicuous fleshy, obsolete in fruit; filaments 25–40 mm, purple; anthers 6–7 mm; ovary cylindric, 5–7 mm, densely puberulent-glandular; style absent; stigma discoid, sessile. Fruits on a gynophore 35–60 mm, cylindric, 5–7.2 cm × 5–8 mm, densely puberulent. Seeds suborbicular, 2.5–3 × 1 mm, finely longitudinally striate, not transversely ridged, glabrous, cleft covered by an opaque membrane.
Distribucion y Habitat
Tarenaya trachycarpa is distributed in northeastern Argentina, southern Brazil, Paraguay, and Uruguay (Fig. 10C), on roadsides, borders of woods, along riversides, sandy riverbanks, and in flooded woods.
Sinónimos
Tarenaya trachycarpa (Klotzsch ex Eichler) Soares Neto & Roalson
Bibliografía
Ejemplares de referencia
| Colector | N° Colect. | Especie | Departamento | Provincia | Imagen |
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-1 | 50 | Ensenada | Buenos Aires |
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-1 | 29 | San José |
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8289 | Islas del Ibicuy | Entre Ríos |
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29894 | La Paz | Entre Ríos |
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30843 | Gualeguaychú | Entre Ríos |
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7460 | La Plata | Buenos Aires |
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7493 | Ensenada | Buenos Aires |
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27612 | Tigre | Buenos Aires |
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552 | Laishí | Formosa |
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553 | Laishí | Formosa |
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41441 | Mandirituba | Paraná |
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10190 | Itatí | Corrientes |
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16314 | Mburucuyá | Corrientes |
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316 | Presidente Hayes |
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3082 | 9 de Julio | Santa Fe |
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4491 | La Capital | Santa Fe |
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259 | b | Río Negro |
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4851 | San Cosme | Corrientes |
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15297 | Capital | Corrientes |
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35611 | Presidente Hayes |
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6222 | San Ignacio | Misiones |
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8841 | General Manuel Belgrano | Misiones | ||
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8841 | General Manuel Belgrano | Misiones | ||
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8841 | General Manuel Belgrano | Misiones | ||
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8841 | General Manuel Belgrano | Misiones |
Nombre Vulgar y Usos
Tipo y Observaciones
Material Tipo: Basónimo: Cleome trachycarpa Klotzsch ex Eichler
Observaciones: Phenology.- Tarenaya trachycarpa is collected with flowers and fruits from August to February.
Discussion.- Tarenaya trachycarpa is a subshrub species, with pubescent to glandular-pubescent indumentum, and many slender to stout short prickles throughout the branches. The indumentum is a diagnostic feature to recognize the species; it can also be recognized by the glandular-puberulent petals at the abaxial face and the cylindric, densely puberulent capsules.
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