| auricles |
Pleural of auricle - when pertaining to grasses, an ear-shaped appendage at the base of a leaf blade
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| awn |
When pertaining to grasses - a bristle-like appendage.
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| awns |
Plural of awn - a bristle-like appendage
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| axil |
The upper angle where the leaf stalk joins the stem.
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| basal |
When pertaining to leaves - rising directly from the roots.
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| beak |
When pertaining to sedges - the narrowed tip of the perigynium.
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| BFLC |
Katherine and Fred Buffett Forest Learning Center
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| biennial |
Completing its life cycle in two years.
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| bipinnate |
When pertaining to leaves - twice compound. See for instance Kentucky Coffee-Tree.
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| bipinnately |
Twice compound.
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| blade |
The broad part of the leaf.
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| bracts |
Small, leaf-like structures, usually found below a flower.
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| callus |
In snails, the partial or complete cover of the umbilicus.
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| calyptra |
In mosses, the covering lid of the capsule.
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| calyx |
The outer circle of sepals; it is usually green.
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