Plant Name Cardinal Flower
Scientific Name Lobelia Cardinals
Family Bellflower
Plant Type Perennial
Start of Blooming Season July
End of Blooming Season September
-1- Sample images submitted by MIROFOSS
-4- Sample images submitted by others


Cardinal Flower is a species of Lobelia which is native to North America. Cardinal Flower is related to two other Lobelia species along the East Coast of North America, Indian tobacco and great lobelia; all species display the characteristic "lip" petal near the opening of the flower and the "milky" liquid the plant excretes. Cardinal Flower was introduced to Europe in the mid-1620s, where the name cardinal flower was in use by 1629, likely due to the similarity of the flower's colour to the vesture of Roman Catholic Cardinals. The genus name commemorates Belgian botanist Matthias de L'Obel (1538-1616).


Plants in the Lobelia family may have potential as a drug for neurological disorders and are currently under study.

Within the realm of rational and holistic medicine, cardinal flower roots have been used by the North American indigenous peoples as an ingredient in tea for a number of intestinal ailments and syphilis. Leaf teas were used for bronchial problems and colds, inter alia. The Meskwaki people used it as part of an inhalant against catarrh. The Penobscot people smoked the dried leaves as a substitute for tobacco. It may also have been chewed. The Zuni people used it externally for rheumatism and swelling.

Please note that MIROFOSS does not suggest in any way that plants should be used in place of proper medical and psychological care. This information is provided here as a reference only.


The plant contains a number of alkaloids. As a member of the genus Lobelia, it is considered to be POTENTIALLY TOXIC. The Zuni people use this plant as an ingredient of "schumaakwe cakes".

Please note that MIROFOSS can not take any responsibility for any adverse effects from the consumption of plant species which are found in the wild. This information is provided here as a reference only.


Cardinal Flower can grow in medium (loamy) and heavy (clay) soils, prefers very moist soil and can grow in shallow aquatic environments. In cultivation cardinal flower requires rich, deep soil which remains reliably moist year-round. Suitable pH: acid, neutral and basic (alkaline) soils. Cardinal Flowers prefer full sun but can grow in partial shade.

Soil Conditions
Soil Moisture
Sunlight
Notes:


Cardinal Flower is a perennial herbaceous plant that grows up to 120cm tall and is found in wet places such as stream banks, swamps, and along fresh water shorelines. The leaves of cardinal flower are up to 20cm long and 5cm wide, lanceolate to oval, with a toothed margin. The blooms of cardinal flower are usually vibrant red, deeply five-lobed, up to 4cm across; they are produced in an erect raceme up to 70cm tall during the summer to fall. Cardinal Flower is easily propagated by seeds which are capsule shaped and approximately 5mm long. The seeds drop and form young plants which grow around the older mature plants each year. Although the plant is generally considered a perennial, they may be short lived. Cardinal Flower is primarily pollinated by the ruby-throated hummingbird.

Plant Height 120cm
Habitat Swamps, Moist Forests, Stream banks
Leaves Alternate, Lanceolate 20cm long
Leaf Margin Toothed
Leaf Venation Pinnate
Stems Smooth Stems
Flowering Season July to September
Flower Type Elongated clusters of deeply lobed flowers
Flower Colour red
Pollination Insects, hummingbirds
Flower Gender Flowers are hermaphrodite and the plants are self-fertile
Fruit Capsule shaped seeds
USDA Zone 4B (-28°C to -31°C) cold weather limit


The following health hazards should be noted when handling or choosing a location to cardinal flower:

TOXICITY
Cardinal Flower contains a number of alkaloids. As a member of the genus Lobelia, it is considered to be potentially toxic.

SKIN IRRITANT
The sap of cardinal flower can cause skin irritation for certain skin types.

-Click here- or on the thumbnail image to see an artist rendering, from The United States Department of Agriculture, of cardinal flower. (This image will open in a new browser tab)

-Click here- or on the thumbnail image to see a magnified view, from Minnesota Wildflowers, of the seeds created by cardinal flower for propagation. (This image will open in a new browser tab)


Cardinal Flower can be referenced in certain current and historical texts under the following name:

Cardinal Flower can be translated into the following select languages:

Arabic الكاردينال زهرة Bulgarian   Chinese (Sim) 红衣主教花
Croatian kardinal cvijet Czech   Danish  
Dutch HoofdBloem Esperanto kardinalo Floro Estonian  
Finnish   French   German Kardinals-Blume
Greek Καρδινάλιος λουλούδι Hebrew פרח קרדינל Hungarian  
Italian Il cardinale Fiore Japanese 枢機卿の花 Korean 추기경 꽃
Punjabi ਮੁੱਖ ਫਲਾਵਰ Lithuanian kardinolas gėlių Norwegian  
Persian کاردینال گل Polish   Portuguese  
Romanian Cardinalul floare Russian кардинал цветок Slovak  
Spanish Flor cardinal Swedish   Tagalog  
Turkish Kardinal Çiçek Ukrainian кардинал квітка Vietnamese  

The MIROFOSS database offers free printable garden tags for personal and non-profit use. These tags can be used to properly identify plant samples in a garden. Click on the tags shown on the the screen or -click here- to download a full size jpeg image for an cardinal flower identification tag; which can be printed on paper or used with a plastic laser printer.

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Description Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario, Royal Ontario Museum, Toronto:McClelland and Stewart Ltd.
Description Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Hazards Felpin F.-X., Lebreton J. , "History, chemistry and biology of alkaloids from Lobelia inflata" Tetrahedron 2004 60:45 (10127-10153)
Folklore Foster, Steven and James A. Duke. Eastern/Central Medicinal Plants. Peterson Field Guides, Houghton, Mifflin 1990 edn. ISBN 0-395-92066-3
Biology Caruso, C. M.; Peterson, S. B.; Ridley, C. E. (2003), "Natural selection on floral traits of Lobelia (Lobeliaceae): spatial and temporal variation", American Journal of Botany 90 (9): 1333–40, doi:10.3732/ajb.90.9.1333, PMID 21659233
Biology Frances Tenenbaum (2003). Taylor's Encyclopedia of Garden Plants. Houghton Mifflin Harcourt. pp. 244–. ISBN 0-618-22644-3.
Folklore Stevenson, Matilda Coxe 1915 Ethnobotany of the Zuni Indians. SI-BAE Annual Report #30 (p. 56)
Image Rendering USDA-NRCS PLANTS Database / USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service.
Environment National Audubon Society. Field Guide To Wildflowers (Eastern Region): Alfred A. Knopf. ISBN 0-375-40232-2
Physical Identification National Audubon Society. Field Guide To Wildflowers (Eastern Region): Alfred A. Knopf. ISBN 0-375-40232-2
September 08, 2020 The last time this page was updated
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