Polypremum

Polypremum
Secure
Secure (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Tetrachondraceae
Genus: Polypremum
L.
Species:
P. procumbens
Binomial name
Polypremum procumbens

Polypremum is a flowering plant genus in the family Tetrachondraceae.[2] The genus contains the single species Polypremum procumbens, commonly known as juniperleaf[3] or rustweed.[4] Polypremum has also been placed in the various families Buddlejaceae, Loganiaceae, Rubiaceae, and most recently in its own Polypremaceae.[5][6]

Polypremum procumbens is a perennial or annual forb/herb, and grows low with sometimes multiple ascending stems producing small white flowers that bloom in summer and fall. Leaves are opposite, 1–2.5 cm, narrow, and pointed at the end. The foliage turns a brownish red in autumn.[5]

Polypremum procumbens is native to the eastern USA excluding New England, south to Central America and the West Indies, with occurrences in South America. It has been introduced in the Pacific basin and Australia, often occurring along roads and airstrips. In its southeastern USA range it is common in coastal plain and piedmont regions, growing in disturbed areas, and rare in the mountains.[6][7]

References

  1. ^ a b "Polyprenum procumbens (Juniper-leaf)". NatureServe Explorer. Retrieved 24 May 2025.
  2. ^ USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN). National Germplasm Resources Laboratory, Beltsville, Maryland. (8 January 2013)
  3. ^ USDA-NRCS PLANTS Database: Polypremum procumbens L. - juniper leaf
  4. ^ Atlas of Florida Vascular Plants: Polypremum procumbens L. - rustweed
  5. ^ a b Richard K. Rabeler & Craig C. Freeman (2012) Flora of North America Provisional Publication: POLYPREMACEAE Takhtajan ex Reveal (Polypremum Family)
  6. ^ a b Weakley, Alan S. (November 2012). Flora of the Southern and Mid-Atlantic States (PDF). Chapel Hill, NC, USA: The University of North Carolina Herbarium. p. 898. Retrieved 26 September 2014.
  7. ^ Encyclopedia of Life (25 Sep 2014)
  • Wikimedia Commons logo Media related to Polypremum at Wikimedia Commons


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