Publication: Trans. Linn. Soc. London, Bot. 1: 77, plate 2, fig. 2. 1791.

Origin: Native

Herbarium search: CPNWH

Notes: Recognition of varieties in this species is based on minor fragrance and pubescence differences and inconstant lip dimensions, and remains controversial. Sheviak (2002a) provides a key to the varieties, and reports from Washington both var. pubescens and var. makasin, but the two have broad and almost completely overlapping ranges across the width of North America. The FNA treatment unfortunately provides the wrong maps for two of the three varieties recognized. "In the west it becomes very difficult to separate [var. makasin] from very small plants of var. pubescens that are common there," according to Sheviak (2002a).

References:

Infraspecies:

Last updated 3/13/2021 by David Giblin.