Difference between revisions of "Sesamum indicum"
Sp. Pl. 2: 634. 1753.
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|special status=Introduced;Selected by author to be illustrated | |special status=Introduced;Selected by author to be illustrated | ||
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|genus=Sesamum | |genus=Sesamum | ||
|species=Sesamum indicum | |species=Sesamum indicum | ||
Revision as of 18:31, 24 September 2019
Stems simple or branched proximally, 4-angled, grooved, 30–100(–150) cm. Leaves: petiole 5–12 cm; blade narrowly lanceolate to ovate, 5–20 × 1–5 cm, base cuneate, apex acute, glabrate adaxially. Pedicels 3–5 mm; bracteoles 0–2, linear. Flowers drooping; sepals 4–8 mm; corolla 2–4 cm, glandular-pubescent externally, tube slightly curved at base, mouth 10 mm diam. Capsules 15–30 × 5–7 mm. Seeds 2–3 mm, smooth. 2n = (18), 32, 52 (Asia).
Phenology: Flowering Jun–Aug.
Habitat: Disturbed sites.
Elevation: 0–1000 m.
Distribution
Ala., Calif., Fla., Ga., La., Mass., Mo., N.J., N.Y., Ohio, Pa., S.C., Tex., Wis., origin unknown, probably s Asia (India), introduced also in South America, Europe, elsewhere in Asia, n Africa, Pacific Islands, Australia.
Discussion
Sesamum indicum is the source of sesame seeds and sesame oil. It has been in cultivation for perhaps more than 5000 years; it is difficult to determine its native range. Sesame seeds are a component of many bird seed mixes, so plants often occur near feeders. The name S. orientale Linnaeus, which pertains here, has been rejected.
Selected References
None.