meridionale Panicum implicatum Panicum columbianum var. thinium Panicum columbianum var. siccanum Panicum columbianum var. oricola Panicum albemarlense Panicum
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hirtirameum Fernald Hieracium canadense var. subintegrum Lepage Hieracium columbianum Linnaeus Hieracium devoldii Omang Hieracium ×dutillyanum Omang Hieracium
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addisonii Panicum commonsianum var. euchlamydeum Panicum commonsianum Panicum columbianum var. commonsianum Panicum addisonii Treatment appears in FNA Volume 25
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Apparent hybrids with D. malacophyllum, D. ovale, and D. acuminatum subsp. columbianum are occasionally found. None. Dichanthelium oligosanthes subsp. oligosanthes
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both have lanceolate leaves and robust stereid bands. Bryoerythrophyllum columbianum also has much the same reddish appearance, short leaf shape, and has a
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specimens. Hybrids of C. montanum and C. parviflorum have been designated C. ×columbianum Sheviak. See 11. C. parviflorum for a general discussion of hybridization
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are not sufficiently distinct to warrant recognition. Symphyotrichum ×columbianum (Piper) G. L. Nesom (syn. Aster columbianus Piper, A. multiflorus Aiton
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crinitum is nearly constant in a single layer of guide cells. Unlike B. columbianum, which has somewhat the same apearance and rather broad distal costa,
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H., N.Y., Oreg., Pa., Vt., Wash., Wis. Rhododendron groenlandicum, R. columbianum, and R. tomentosum customarily have been placed in the genus Ledum. Ledum
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nectaries and is not so prominent in bud. Frequent hybrids with Lilium columbianum in Oregon occur primarily where human disturbance has introduced that
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