Perennial herb from spindle-shaped stem-bases, with a few fibrous roots; stems 15-100 cm tall, leafy.
Basal and stem leaves oblong to linear or lanceolate, 10-30 cm long.
Inflorescence a terminal, 5- to 30-flowered spike, the flowers white, very fragrant, unstalked; sepals 3-9 mm long, broadly lanceolate, 3(4)-veined, the upper sepal egg-shaped, erect, converging with the petals and forming a hood; petals 1- to 2-veined, slightly shorter and wider than sepals; lip linear-lanceolate to lanceolate, 5-10 mm long, strongly round-dilated at base; spur 5-10 mm long, slenderly cylindric to slightly club-shaped, slightly curved; column about 2 mm long.
Capsules, ascending to erect.
Three varieties occur in BC:
1. Spurs up to two-thirds the length of lips.................... var. albiflora (Cham.) Ledeb.
1. Spurs equaling the lips or slightly longer.
2. Spurs 1.5-2 times longer than lips, very slender, strongly curved..................... var. leucostachys (Lindl.) Luer
2. Spurs about the length of the lips, not very slender, not strongly curved....................... var. dilatata
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|BAFA(4), BWBS(20), CDF(5), CMA(1), CWH(67), ESSF(269), ICH(153), IDF(21), IMA(1), MH(21), MS(90), PP(3), SBPS(18), SBS(200), SWB(4)|
Source: Klinkenberg 2013
|Scientific Name||Origin Status||Provincial Status||BC List|
(Red Blue List)
|Platanthera dilatata var. albiflora||Native||S5||Yellow||Not Listed|
|Platanthera dilatata var. dilatata||Native||S5||Yellow||Not Listed|
|Platanthera dilatata var. leucostachys||Native||S5||Yellow||Not Listed|