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GRASSES
OF THE COLUMBIA BASIN OF BRITISH COLUMBIA
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Appendix A: Diagnostic Checklist
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Is the plant annual or perennial? |
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Are there rhizomes or stolons? |
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Is the ligule made up of hairs or a membrane? |
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How long is the ligule? |
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Are there auricles? |
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Are the leaf blades flat or inrolled? |
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List the surface type for the leaf sheath (smooth, rough, hairy etc.) |
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Are the sheaths open or closed (how far along the length)? |
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Name the type of flowerhead (spike,branching). |
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Is the flowerhead a spike or branching? |
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How many spikelets at each node? |
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Is the spikelet round or compressed? |
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Are there sterile flowers (or florets)? |
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Are the sterile flowers above or below the fertile ones? |
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How many flowers to a spikelet? |
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Are the glumes as long, longer or shorter than the spikelet? |
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How many nerves on the back of the first glume? |
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How many nerves on the back of the second glume? |
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How long is the glume? |
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How many nerves are on the lemma? |
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Are the nerves of the lemma parallel or converging at the tip? |
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Is the lemma rounded or compressed keeled on the back? |
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Is the lemma awnless, awned on the back or terminally awned? |
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Where is the lemma awn attached: on the tip or on the back? |
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Is the lemma either webbed or bearded at the base? (yes or no)? |
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Is the palea as long as the lemma? |
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Is there a callus? |
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Is there any obvious colour on the stem or the flowerhead?
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Copyright © Royal
BC Museum |
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