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Species Details

Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium Read more about this collection »

LeavesLance-shaped; 4-20 cm long; reduced upwards (Moss, 1983). FlowersInflorescence 10-30 cm long; spicy-fragrant; white to yellowish-white; sepals and petals egg to lance-shaped; lip 5-8 mm long; lance-shaped and wide at base; cylindrical spur up to 5-8 mm long (Moss, 1983). Fruits and SeedsCapsules; ascending to erect (E-Flora BC).
Scientific Name Habenaria dilatata (Pursh) Hook. Common Name tall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). General Description A perennial herb that grows from stout or slender, hollow stems to 20-70 cm high; bears white and strongly perfumed flowers (Moss, 1983). Leaves Lance-shaped; 4-20 cm long; reduced upwards (Moss, 1983). Flowers Inflorescence 10-30 cm long; spicy-fragrant; white to yellowish-white; sepals and petals egg to lance-shaped; lip 5-8 mm long; lance-shaped and wide at base; cylindrical spur up to 5-8 mm long (Moss, 1983). Fruits and Seeds Capsules; ascending to erect (E-Flora BC). Phenology June-August (JSTOR). Notes
2n=43 (Moss, 1983). Also called Platanthera dilatata (Moss, 1983). Similar species: H. hyperborea: northern green bog orchid; main difference is the lack of flared lip at base in this species comapared to H. dilatata…
2n=43 (Moss, 1983). Also called Platanthera dilatata (Moss, 1983). Similar species: H. hyperborea: northern green bog orchid; main difference is the lack of flared lip at base in this species comapared to H. dilatata (Johnson et al., 1995).
Range/Distribution Alberta: SW in mountain range and central (Canadensys). CAN (BC, MB, NB, NL, NS, SK, NT, NU, ON, PE, QC, YT); USA (AK, WA, OR, NE, ID, MT, WY, UT, CO, NM, SD, IA, MN, WI, IL, MI, IN, PA, NY, MA, MD, ME, VT, NH) (USDA).

Citation

Page Citation for Habenaria dilatata (Pursh) Hook.

Page Citation

"Species Details - Habenaria dilatata (Pursh) Hook., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search-test.museums.ualberta.ca/g/1-3315/12-14932. Accessed 13 Oct. 2025.

Specimen Information

There are 73 specimens of this Species.

33 results plotted on map in 29 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

107529 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Banks Island, Kelp Point Date Collected1983-07-23

107530 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Big Bay Date Collected1983-07-28/1983-07-30

101017 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Banks Island, Kelp Point Date Collected1983-07-23

36534 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Ontario, Holland Marsh Date Collected1896-06-17

36524 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Vancouver Island, Alberni Date Collected1921-06-12

36529 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Big Bend Highway Date Collected1951-06-29

36528 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Gray Creek Date Collected1944-06-30

36527 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Yoho National Park, Yoho Valley Date Collected1943-07-29

36526 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Yoho National Park, Yoho Valley Date Collected1943-07-29

36525 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Yoho National Park, Emerald Lake Date Collected1942-07-09

36539 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Yoho National Park, Emerald Lake Date Collected1942-07-09

29427 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Newfoundland and Labrador, St. John's Date Collected1968-08-03

24401 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Yoho National Park, Wapta Lake Date Collected1941-06-29

47758 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Newfoundland and Labrador, Come By Chance Date Collected1973-08-02

88369 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Northwest Territories, Tungsten Date Collected1981-08-13

82722 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Yukon, Coal River Date Collected1977-07-16/1977-07-19

43956 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, E.C. Manning Park Date Collected1964-07-22/1964-07-25

29903 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Nunavut, James Bay, Charlton Island Date Collected1929-07-06/1929-07-14

101040 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Big Bay Date Collected1983-07-28/1983-07-30

91842 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, Yukon, Robert Campbell Highway Date Collected1986-07-15

55433 - Habenaria dilatata (Pursh) Hook.

University of Alberta Vascular Plant Herbarium

Common Nametall white orchid (Moss, 1983); scent candle (Johnson et al., 1995). Place CollectedNorth America: Canada, British Columbia, Barkerville Date Collected1972-08-03