Silvianthus tonkinensis (Gagnep.) Ridsdale
  • Blumea


Cite taxon page as 'WFO (2019): Silvianthus tonkinensis (Gagnep.) Ridsdale. Published on the Internet; http://www.worldfloraonline.org/taxon/wfo-0001240106. Accessed on: 21 Oct 2019'

General Information

Subshrubs, 1-2(-4) m tall, glabrous. Stems terete. Petiole 1-4(-7) mm, rugose when dry; leaf blade elliptic, ovate-elliptic, or sometimes broadly elliptic, large, (10-)15-25(-30) × 5-20 cm, drying papery, lateral veins (9 or)10(-16) pairs, joining in an intramarginal vein, slightly prominent on both surfaces when dry, base usually broadly cuneate, rarely slightly obtuse, or slightly decurrent, margin often shallowly dentate-incised, apex acute to shortly acuminate. Cymes 1-4 cm in diam.; peduncles usually shorter than 1 cm, sometimes to 5 cm; bracts linear, 4-6 mm. Flowers heterostylous. Pedicel ca. 3 mm. Calyx tube obconical, 2-3 mm; lobes linear, 9-11 × 1-1.5 mm, longitudinally veined, often obtuse. Corolla usually yellow or pale red, occasionally purplish red (based on literature); tube 1.2-1.3 cm, throat slightly expanded, outside glabrous, inside with soft hairs; lobes orbicular, 5-6 mm, inside papillose. Stamens inserted near middle of corolla tube; anthers ca. 4.5 mm. Style ca. 1.1 cm. Capsule purple at maturity, obconical, 6-9 mm in diam. Seeds black, 3-3.5 mm, white aciculate striate-rugose. Fl. Mar-Jul, fr. Oct-Dec.

  • Provided by: [B].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

     Information From

    Carlemanniaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).