Tobacco

Tobacco

Relating to products that are made from the leaves of plants in the genus Nicotiana, that are used in some medecines but more widely and popularly used as a recreational drug in the form of cigarettes and cigars.

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axil

Plants; Flowers

The angle formed between a leaf stalk and the stem to which it is attached. In flowering plants, buds develop in the axils of leaves.

bipinnate

Plants; Flowers

Describing a pinnate leaf in which the leaflets themselves are further subdivided in a pinnate fashion.

bisporangiate

Plants; Flowers

When a flower or cone produces both megaspores and microspores, it is said to be bisporangiate. Most flowers are bisporangiate.

blade

Biology; Flowers

Any broad and flattened region of a plant or alga, which allows for increased photosynthetic surface area.

bract

Biology; Flowers

Any reduced leaf-like structure associated with a cone or flower.

bryophyte

Plants; Flowers

Plants in which the gametophyte generation is the larger, persistent phase; they generally lack conducting tissues. Bryophytes include the Hepaticophyta (liverworts), ...