Category: A
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Aseptate
Without partitions.
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Asepalous
Without sepals.
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Ascidiate
Pitcher-shaped or bottleshaped, such as a hollow tubular leaf.
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Ascending
Curved upwards, growing upward, sometimes indirectly. Rising obliquely upwards.
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Artificial classification
(In taxonomy) a grouping that does not reflect relationships, but is based either on superficial similarities or on only a few characters, such as the number of stamens.
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Articulated
Jointed, with nodes of apparent articulation. Consisting of segments held together by joints. Furnished with joints.
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Article
An individual segment of a fruit constricted at intervals and breaking along these constrictions (e.g. a lomentum); The constituent parts of the International Code of Botanical Nomenclature, which governs the application of scientific names in botany. The current Code is the Vienna Code (McNeill et al., 2006).
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Arrow-shaped
Sharply pointed at apex, with two backwards-pointing lobes at base.
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Arrested
(Of growth) stopped.
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Aromatic plants
Producing volatile oils with discernible odours.