Note: These pages are under construction and contain only stubs.
What is the plant's main leaf arrangement ?
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Basal | Leaves clustered only at the base, next to the ground. |
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Whorled | Multiple leaves, at least 3, usually arranged more or less evenly around a stem, clustered above ground level. Whorls just at ground level are called "Basal". |
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Opposite | Leaves arranged usually in pairs on opposite sides of the stem, although the last leaf may be a single leaf at the end of the stem. (When there are more than 2 leaves attached at the same point on the stem, this is referred to as a Whorl.) |
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Alternate | Single leaves arranged so they alternate from one side of the stem to the other side. For purposes of classification, a plant that exhibits leaves both alternately and occasionally oppositely on the same stem should be treated as an alternate. |