| 41. | At the junction of the sheath and blade there is a small ligule, extending to 1.5 2 mm.
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| 42. | At the junction of the blade and sheath there are small transparent structures ( ligules ), 1 2 mm high.
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| 43. | The ligule appears to be a continuation of the leaf sheath and encircles or clasps the stem as does the leaf sheath.
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| 44. | The three basic types of ligules are : membranous, a fringe of hairs ( ciliate ), and absent or lacking.
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| 45. | At the junction of the blade and sheath there are small transparent structures ( ligules ), 0.5 2 mm high.
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| 46. | There is a very small ligule, extending to about 0.5 mm, at the junction of the leaf sheath and blade.
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| 47. | It can grow to 4.5 feet ( 1.5 Meters ) tall, and has a long, narrow, pointed ligule.
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| 48. | It has leaves with a short ligule ( < 13 mm ), and panicles that are compact to open, rarely having secondary branching.
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| 49. | The leaf blades are up to 52 centimeters long and may be hairless to hairy, with a dense coating of hairs behind the ligules.
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| 50. | It is easily distinguished from the other species in the genus by its short ligules ( less than 6 mmm long ) and involute leaves.
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