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(Last Modified On 9/19/2013)
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(Last Modified On 9/19/2013)
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Species
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Sesamum indicum L.
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PlaceOfPublication
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Sp. PI. 634. 1753.
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Note
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LECTOTYPE: Herb. Linnaeus (LINN 802.3, not seen; MO, microfiche).
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Synonym
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Sesamum orientate L., Sp. P1. 634. 1753. TYPE: not seen.
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Description
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Erect, fetid, glandular pubescent, annual herb to 2 m tall, somewhat branched; stems 4-angled. Leaves opposite below, often alternate above, variable in shape, entire, serrate, palmately lobed or nearly compound, 8-15 cm long, 6-10 cm wide, pubescent above and below and with copious 4-celled short-stalked glands beneath, the petioles ca. 5 cm long, often pilose. Inflorescence a single flower or 2-3 flowers in the upper leaf axils; pedicels 1-2 cm long with 2 yellow or black basal nectaries. Flowers white, rose or purple, mostly maculate; calyx 6-8 mm long, deeply 5 lobed, the lobes similar, acute or acuminate; corolla campanulate, basally minutely saccate, slightly 2-lipped, pubescent outside and with 1-4 celled glands; anthers pale yellow with a short white or brownish beak; ovary pilose, erect, brown or purple, grooved, with 4 rounded angles, the style slender, gla- brous. Fruit apically dehiscent, to 3 cm long, oblong, glabrate to hirsute; seeds smooth or minutely rugose, to 3 mm long.
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Habit
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herb
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Note
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This species is distinct in its usually broad leaves and smooth unwinged seeds. The plants and corolla superficially resemble members of the Scrophulariaceae or Gesneriaceae, but the 4-celled glandular trichomes are distinctive. Sesamum indicum is cultivated in Panama from time to time for its oil pro- ducing seeds, and sometimes it escapes or is persistent after planting.
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Common
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sesame ajonjoli
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Specimen
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LOS SANTOS: Cultivated, Monagre Beach, Dwyer 1965 (MO). PANAMA: Planted, Ri6 Tapia, Stan- dley 30657 (MO).
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Project Name
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