Scoparia dulcis

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Scoparia dulcis
Scop dulc.jpg
Photo by John R. Gwaltney, Southeastern Flora.com
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Scrophulariales
Family: Scrophulariaceae
Genus: Scoparia
Species: S. dulcis
Binomial name
Scoparia dulcis
L.
Scop dulc dist.jpg
Natural range of Scoparia dulcis from USDA NRCS Plants Database.

Common names: Licorice weed, Sweet-broom, Goat weed

Taxonomic notes

Description

It is a ruderal species. [1]

"Erect, profusely branched perennial, 3-8 dm tall, the stems pubescent. Especially about the nodes. Leaves glandular-punctate, opposite, ovate-lanceolate to rhombic-ovate, 1-3 cm long, 6-16 mm wide, the distal ½-2/3 serrate. Flowers axillary, usually solitary, pedicel shorter than the petiole of the subtending leaf; calyx 4-parted, 1.5-2 mm long, the lobes widely ovate to elliptic, equaling or much exceeding the tube; corolla 4-parted, white, rotate, regular, the throat lanose, lobes ca. 1 mm long; stamens 4. Capsule subglobose to widely ellipsoid, ca. 2 mm long or broad." [2]

Distribution

Ecology

Habitat

In the Coastal Plain in Florida, S. dulcis can occur in moist loam around ponds and bordering adjacent woodlands. It has been observed in disturbed sites such as waste areas, powerlines corridors, fallow fields, and the upper edge of a restored marshy area. [1]

Phenology

Flowers from June to September and fruits in August and September.[1][3]

Pollination

The following Hymenoptera families and species were observed visiting flowers of Scoparia dulcis at Archbold Biological Station: [4]

Megachilidae: Megachile albitarsis

Conservation and management

Cultivation and restoration

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: November 2015. Collectors: Loran C. Anderson, Lisa Keppner, R. Komarek, Annie Schmidt, Cecil R. Slaughter. States and Counties: Florida: Liberty, Jefferson, St. Johns, Taylor, Washington. Compiled by Tall Timbers Research Station and Land Conservancy.
  2. Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 937. Print.
  3. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 13 DEC 2016
  4. Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.