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Houstonia caerulea

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Species of plant

Houstonia caerulea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Genus: Houstonia
Species: H. caerulea
Binomial name
Houstonia caerulea
L.
Synonyms

Houstonia caerulea, commonly known as azure bluet, Quaker ladies, or bluets, is a perennial species in the family Rubiaceae. It is native to eastern Canada (Ontario to Newfoundland) and the eastern United States (Maine to Wisconsin, south to Florida and Louisiana, with scattered populations in Oklahoma). It is found in a variety of habitats such as cliffs, alpine zones, forests, meadows and shores of rivers or lakes.

Description

Azure Bluet (Houstonia caerulea) in Pennsylvania
Azure Bluet (Houstonia caerulea) in Pennsylvania, close-up

Houstonia caerulea is a perennial herb that produces showy flowers approximately 1 cm (0.39 in) across. These flowers are four-parted with pale blue petals and a yellow center. The foliage is a basal rosette with spatula-shaped leaves. Stems are up to 20 cm (7.9 in) tall with one flower per stalk. Leaves are simple and opposite in arrangement with two leaves per node along the stem. It thrives in moist acidic soils in shady areas, growing especially well among grasses.

Gallery

References

  1. ^ Justice, William S.; Bell, C. Ritchie; Lindsey, Anne H. (2005). Wild Flowers of North Carolina (2. printing. ed.). Chapel Hill, NC: Univ. of North Carolina Press. p. 236. ISBN 0807855979.
  2. ^ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2021-10-13.
  3. Biota of North America Program
  4. ^ "Houstonia caerulea (little bluet): Go Botany". gobotany.nativeplanttrust.org. Retrieved 2021-11-04.
  5. Scoggan, H. J. 1979. Dicotyledoneae (Loasaceae to Compositae). Part 4. 1117–1711 pp. In Flora of Canada. National Museums of Canada, Ottawa.

Further reading

External links

Taxon identifiers
Houstonia caerulea


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