Key to Species: 3

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1b hair points not dentate >2a high, conical papillae present >

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Niphotrichum canescens - near Howard Prairie Reservoir, Jackson Co, Oregon. DHW m0421.

3a Costa forked in many leaves, generally with a blunt end in a shallow trough in the upper part of leaf, above this trough the leaf margins narrowing abruptly to the tip; rare in western Oregon, more common in eastern Oregon
Niphotrichum canescens (Mitt.) Bednarek-Ochyra & Ochyra

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Niphotrichum elongatum - Irwin Rocks, Douglas Co., Oregon. DHW 7868a.

3b Costa not forked, generally tapering to tip shortly below the hair point; the leaf sharply keeled throughout and with a narrowly tapering tip
Couplet 4

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Created 2007 Northwest Botanical Institute