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Nicotiana (botany): Difference between revisions
>David Hedlund ==External links== * [https://en.wikipedia.org/wiki/Nicotiana ''Nicotiana'' (Wikipedia)] |
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{{BotanyTable/Nicotiana}} | {{BotanyTable/Nicotiana}} | ||
==Identification== | ==Identification== | ||
Nicotiana tabacum is a robust annual little branched herb up to 2.5 m (8.2 ft) high with large green leaves and long trumpet-shaped white-pinkish flowers. All parts are sticky, covered with short viscid-glandular hairs, which exude a yellow secretion containing nicotine. | ''Nicotiana tabacum'' is a robust annual little branched herb up to 2.5 m (8.2 ft) high with large green leaves and long trumpet-shaped white-pinkish flowers. All parts are sticky, covered with short viscid-glandular hairs, which exude a yellow secretion containing nicotine. | ||
===Leaves=== | ===Leaves=== | ||
Varied in size, the lower leaves are the largest at up to 60 cm (24 in) long, shortly stalked or unstalked, oblonged-elliptic, shortly acuminate at the apex, decurrent at the base, the following leaves decrease in size, the upper one sessile and smallest, oblong- lanceolate or elliptic. | Varied in size, the lower leaves are the largest at up to 60 cm (24 in) long, shortly stalked or unstalked, oblonged-elliptic, shortly acuminate at the apex, decurrent at the base, the following leaves decrease in size, the upper one sessile and smallest, oblong- lanceolate or elliptic. | ||