Dendrobium protractum (wild PNG) Dauncey, Harvard Pap. Bot. 7: 228 (2003)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/25064784@N00">snotch</a> from Sapporo, Hokkaido, Japan
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/snotch/30909058213/">Dendrobium protractum (wild PNG) Dauncey, Harvard Pap. Bot. 7: 228 (2003)</a>