Scoparia dulcis L. (Sweet Broomweed): In Vitro Culture and the Production of Diterpenoids and Other Secondary Metabolites

  • T. Hayashi
Part of the Biotechnology in Agriculture and Forestry book series (AGRICULTURE, volume 37)


Sweet broomweed (Scoparia dulcis L., Scrophulariaceae) is a perennial herb widely distributed in the torrid zone. The original habitat of this plant is tropical America. Stems are erect, branching, and sometimes woody at the base, 25–80 cm tall. (Fig. 1) Roots are pale yellow and straight, 10–15 cm long, with many lateral roots. Leaves are lanceolate, elliptical, or obovate, 5–20 mm long, with serrations at the edge, and are opposite or verticillate. The plant has small, white flowers with four calices. The corrola is actinomorphic and split in four. Flowers are 4–5 mm in diameter and bear four stamens and a pistil. Flowering time is summer and autumn. After flowering, ovate or globular capsules mature (2–3 mm in diameter), which contain many powder-like seeds.


Hairy Root Multiple Shoot Hairy Root Culture Callus Tissue Leaf Segment 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • T. Hayashi
    • 1
  1. 1.Faculty of Pharmaceutical SciencesToyama Medical and Pharmaceutical University2630 Sugitani, ToyamaJapan

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