Some Name Changes

There have been a number of name changes recently among our native orchids, mostly changes of genus, that have shuffled many of the orchids back into older genera.  Most of this taxonomic revision appears to have been done by Richard Bateman.  Whether these names will stick remains to be seen, but at least for now these appear to be the current names.

First, Coeloglossum viride var. viridis, the Frog Orchis or Long-bracted Green Orchis, is now once again Dactylorhiza viridis var. virescens.

Second, all the Listeras have been moved back to the genus Neottia.  This involves a total of four species from the Pacific Northwest.

Neottia borealis

Neottia cordata

Neottia banksiana

Neottia convallarioides

Third, all the Piperias, five species, have been moved back into the genus Platanthera, with Piperia candida changed to Platanthera ephemerantha.

Platanthera unalascensis

Platanthera elegans

Platanthera transversa and Platanthera elongata

Platanthera ephemerantha

Fourth, Malaxis monophyllos var. brachypoda seems now to be the accepted name for Malaxis brachypoda in spite of differences between that species and its Eurasian counterpart.

Fifth, the Small Round-leaf Orchis, Amerorchis rotundifolia, is now Galearis rotundifolia, a completely new genus for this species.

It is sometimes hard to keep up with the changes and to remember them, especially because the names seem to be in a continual state of flux and may be different again tomorrow.  In any case, if you are looking for a particular species always check for synonyms.

Small Round-leaf Orchis (Galearis rotundifolia)

The Small Round-leaf Orchis was originally classified as Orchis rotundifolia since it is most closely related to that European genus, but was reclassified as Amerorchis in 1968 and more recently as Galearis. It is the only species in the genus and has no other close North American relatives.

This plant ranges from Alaska through Canada to Greenland, and south into the United States into Montana and Wyoming and from Minnesota eastward to Maine. Sadly, it is not found in Washington state.  It prefers open woodlands and boggy areas.

The plant is reported to grow to 35 cm tall, though the plants we have seen have all been much shorter, the tallest about 18 cm. The delightful bird-like or angel-like flowers are about 1-1.5 cm tall with 10-15 flowers per plant.  The plant has a single round leaf at the base.

There are various color forms, including a pure white form, but we have not seen all of these varieties (see below) and they are quite rare. The usual form, however, is quite abundant in some locations and we have seen them by the thousands in several areas.

We've found this orchid several times in British Columbia and Alberta. We saw it first in British Columbia off an access road where it was growing with Cypripedium parviflorum and Platanthera huronensis.  We've since seen it in the area of Edmonton, Alberta.

Another BC location is in Mount Robson Provincial Park, where it was growing just beyond the bridge south of the Kinney lake campground and along the lake and on the edge of the woods past the bridge and then again along the river in the Whitehorn campground and north to White Falls.

We've seen two color varieties of this species  the striped-lip form, Galearis rotundifolia fma. lineata, found on an orchid hunting trip near Edmonton with a friend, and the nearly white forms, Galearis rotundifolia fma. wardii and fma. immaculata, with only some pale coloring on the lip, seen along the Berg Lake Trail in Mount Robson Provincial Park.