Epithets
| anacantha |
without spines |
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| anacanthus |
without spines |
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| anemophila |
wind-loving |
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| anemophilus |
wind-loving |
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| angulosa |
with corners, prominent ridges |
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| angulosus |
with corners, prominent ridges |
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| angustata |
narrowed |
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| angustatus |
narrowed |
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| angustifoliata |
narrow leaves |
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| angustifoliatus |
narrow leaves |
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| annua |
annual |
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| annularis |
ring shaped, ringed |
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| annuus |
annual |
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| anopetala |
petals ascending |
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| anopetalus |
petals ascending |