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Species of flowering plant From Wikipedia, the free encyclopedia
Lobelia cardinalis, the cardinal flower (syn. L. fulgens), is a species of flowering plant in the bellflower family Campanulaceae native to the Americas, from southeastern Canada south through the eastern and southwestern United States, Mexico and Central America to northern Colombia.[4]
| Lobelia cardinalis | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Campanulaceae |
| Genus: | Lobelia |
| Species: | L. cardinalis |
| Binomial name | |
| Lobelia cardinalis | |
| Synonyms[3] | |
|
List
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Lobelia cardinalis is a perennial herbaceous plant which grows up to 1.2 m (4 ft) tall. It is found primarily in wet places, such as riparian zones, riverbanks, bogs or swamps. It is also sometimes found in damp or semi-flooded and shaded forest areas.[5] The plant tends to occupy locations near a water source, providing its roots with consistent hydration via groundwater from the saturated soil. It may be found growing slightly away from or closer to the water, and may even be found growing aquatically, with some or all of the plant submerged and its flowers rising from the surface.[5]
The leaves are up to 20 cm (8 in) long and 5 cm (2 in) broad, lanceolate to oval, featuring a toothed margin. The flowers are usually vibrant red, have five deep lobes, and are up to 4 cm across; they are produced via an erect raceme, up to 70 cm (28 in) tall, during the summer and into the fall. Some forms with white (f. alba) and pink (f. rosea) flowers are also known.[6]
L. cardinalis is related to two other Lobelia species found in the Eastern United States, Lobelia inflata ('Indian tobacco') and Lobelia siphilitica ('great lobelia'). As is typical of the genus, all display the characteristic "lip" petal near the opening of the flower and a "milky" secretion when the plant is broken. L. siphilitica has blue flowers and is primarily pollinated by bees, whereas L. cardinalis is red, and is primarily pollinated by the ruby-throated hummingbird (Archilochus colubris).[7]
Lobelia cardinalis was first introduced to Europe in the mid-1620s; the name 'cardinal flower' was in use by 1629, likely due to the similarity of the flower's color to the vesture of Roman Catholic Cardinals.[8]
In cultivation, L. cardinalis requires rich, fairly deep soil which remains reliably moist—yet sufficiently aerated—all year-round; alternatively, it may be grown as an accent plant in or along ponds, fountains or other garden water features, with its pot positioned so it can always access water. If not planted in or around a water source, L. cardinalis tends to prefer for its roots to stay cool, something achieved when grown in dappled sun or part shade.[9] The cultivar 'Queen Victoria' has gained the Royal Horticultural Society's Award of Garden Merit.[10][11]
This plant is easily propagated by seed or by dividing-out the young plants, which are seen forming around the older, more mature plants each year. Although the plant is generally considered a perennial, they may be short-lived, or behave more as a "long-term annual".
Within the freshwater planted aquarium and aquascaping hobbies, the species is used somewhat frequently;[12] at least one new variety has been developed and is available commercially, Lobelia cardinalis 'Mini', with small and compact green leaves.[13][14]
The Zuni people use this plant as an ingredient of "schumaakwe cakes" and used it externally for rheumatism and swelling.[15] The Penobscot people smoked the dried leaves as a substitute for tobacco. It may also have been chewed.[16]
As a member of the Lobelia genus, L. cardinalis contains a number of naturally-occurring, toxic alkaloids, including lobelanine and lobeline,[17] thus rendering the species potentially harmful if ingested.[18] Various negative physical symptoms may manifest upon consuming even small or mid-sized quantities of the plant, including nausea, vomiting, diarrhea, excessive salivation, fatigue/exhaustion, weakness, dilation of pupils, convulsions, and even coma.[17]
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