Floral Glossary - O - P - R - S - V
O
Opposite arrangement (of leaves)
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Leaves attached to stem in pairs with one of pair on either side of stalk
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P
Peduncle
Perennial
Pinnate (venation)
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Veins arranged in pairs coming from main central midrib vein (rachis)
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R
Raceme
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a simple inflorescence (as in the lily of the valley) in which the flowers are borne on short stalks of about equal length at equal distances along an elongated axis and open in succession toward the apex
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S
Serrate (leaf margin)
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Continuous, sharp teeth pointing toward leaf tip
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Simple (leaf structure)
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