Engellaria

Engellaria
herbarium specimen
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Caryophyllaceae
Genus:
Iamonico (2021)
Species:
E. obtusa
Binomial name
Engellaria obtusa
(Engelm.) Iamonico (2021)
Synonyms[1]
  • Alsine obtusa (Engelm.) Rose (1896)
  • Alsine viridula Piper (1913)
  • Alsine washingtoniana (B.L.Rob.) A.Heller (1900)
  • Stellaria obtusa Engelm. (1882) (basionym)
  • Stellaria viridula (Piper) H.St.John (1925)
  • Stellaria washingtoniana B.L.Rob. (1898)

Engellaria obtusa (synonym Stellaria obtusa) is a species of flowering plant in the family Caryophyllaceae[1] known by the common names Rocky Mountain chickweed,[3] blunt-sepaled starwort, and obtuse starwort. It is the sole species in genus Engellaria.[4] It is native to western North America, from British Columbia and Alberta to California to Colorado, where it grows in moist areas in forests and on mountain slopes.

It is a rhizomatous perennial herb producing a prostrate, creeping, branching stem up to about 20 centimeters long, sometimes forming mats. The oval leaves are up to about a centimeter long and are borne in opposite pairs on the stem. Solitary flowers occur in the leaf axils, each borne on a short pedicel. The small flower has no petals, just four to five blunt-tipped green sepals each a few millimeters long.

References

  1. ^ a b Engellaria obtusa (Engelm.) Iamonico. Plants of the World Online. Retrieved 23 March 2024.
  2. ^ NatureServe (2024). "Stellaria obtusa". Arlington, Virginia. Retrieved 18 January 2024.
  3. ^ NRCS. "Stellaria obtusa". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 1 December 2015.
  4. ^ Engellaria Iamonico. Plants of the World Online. Retrieved 23 March 2024.
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