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Species Details

Listera cordata (L.) R. Br.

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

LeavesUsually below middle of stem; egg to kidney-shaped; heart-shaped at base; 1-4 cm long (Moss, 1983). Opposite (Johnson et al., 1995). FlowersPurplish to yellowish-green; sepals and petals egg-shaped; 2-3 mm long; lip 2-4 times longer than wide, 4-5 mm long; cleft below middle into lobes; 2 teeth near base (Moss, 1983). 5-16 in cluster (Johnson et al., 1995). Fruits and SeedsCapsule; egg-shaped; 4-6 mm long; many seeds (Johnson et al., 1995).
Scientific Name Listera cordata (L.) R. Br. Common Name heart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). General Description A perennial herb from creeping rhizomes that is slightly hairy, grows 6-20 cm tall and has purplish to yellowish-green flowers (Moss, 1983). Leaves Usually below middle of stem; egg to kidney-shaped; heart-shaped at base; 1-4 cm long (Moss, 1983). Opposite (Johnson et al., 1995). Flowers Purplish to yellowish-green; sepals and petals egg-shaped; 2-3 mm long; lip 2-4 times longer than wide, 4-5 mm long; cleft below middle into lobes; 2 teeth near base (Moss, 1983). 5-16 in cluster (Johnson et al., 1995). Fruits and Seeds Capsule; egg-shaped; 4-6 mm long; many seeds (Johnson et al., 1995). Phenology June to August (JSTOR). Notes
2n=36, 28, 40, 42 (Moss, 1983). Also called Ophyrus cordata(Moss, 1983). This is the most common species in Listera but is still quite rare (Johnson et al., 1995). Its pollination strategy interested Charles Darwin;…
2n=36, 28, 40, 42 (Moss, 1983). Also called Ophyrus cordata(Moss, 1983). This is the most common species in Listera but is still quite rare (Johnson et al., 1995). Its pollination strategy interested Charles Darwin; pollen is explosively expelled in a drop of fluid that glues pollinia to insects (Johnson et al., 1995(.
Range/Distribution Alberta: SW in mountain range to central (Canadensys). CAN (BC, MB, NB, NL, NS, SK, NT, ON, PE, QC, YT); USA (AK, WA, OR, CA, MT, ID, NV, WY, UT, CO, NM, MN, WI, MI, VA, OH, NY, ME, WV, PA, NJ, CT, RI, VT, NH, MA) (USDA).

Citation

Page Citation for Listera cordata (L.) R. Br.

Page Citation

"Species Details - Listera cordata (L.) R. Br., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search-test.museums.ualberta.ca/g/1-3480/12-13028. Accessed 09 Oct. 2025.

Specimen Information

There are 69 specimens of this Species.

43 results plotted on map in 37 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

104400 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Grande Prairie Date Collected1983-07-07

104397 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Fox Creek Date Collected1984-07-19

104399 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Fox Creek Date Collected1984-07-21

104398 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Fox Creek Date Collected1984-07-08

94256 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Hondo Date Collected1987-07-18

36669 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park Date Collected1930-07-19

23858 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Dutch Creek Date Collected1955-07-22

5427 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Crowsnest Forest Reserve Date Collected1944-07-10

5430 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Robb Date Collected1953-07-28

5429 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park Date Collected1935-06-19

44774 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Whitecourt Date Collected1973-07-12

84253 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Birch Lake Date Collected1978-06-29

91075 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Jasper National Park, Buck Lake Date Collected1967-07-25

98984 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Obed Date Collected1991-07-18

24808 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Banff National Park, Moraine Lake Date Collected1964-08-11

45420 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Jasper National Park, Vine Creek Date Collected1971-08-07

46233 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park Date Collected1972-06-25

45649 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Castle Divide Date Collected1970-08-12

45651 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Cameron Lake Date Collected1969-08-05

41712 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Banff National Park, Cirque Lake Date Collected1965-06-30

57392 - Listera cordata (L.) R. Br.

University of Alberta Vascular Plant Herbarium

Common Nameheart-leaved twayblade (Moss, 1983); mannikin twayblade (Johnson et al., 1995). Place CollectedNorth America: Canada, Alberta, Swan Dive Tower Date Collected1968-08-06