1. Family: Euphorbiaceae Juss.
    1. Genus: Tragia Plum. ex L.
      1. Tragia dioica Sond.

        This species is accepted, and its native range is Zimbabwe, S. Africa.

    [FZ]

    Euphorbiaceae, A. Radcliffe-Smith. Flora Zambesiaca 9:4. 1996

    Habit
    An erect or suberect urticating perennial herb up to 60 cm tall, usually much less, monoecious or polygamo-dioecious; stems several from a woody rootstock, puberulous to tomentose and stinging-setose.
    Stipules
    Stipules 3–4 mm long, lanceolate, puberulous.
    Petiole
    Petioles 0.2–2 cm long.
    Leaf lamina
    Leaf blades 3–7 × 0.3–1.5 cm, 1–3.5 cm wide at the base, usually narrowly lanceolate and often strongly 3-lobed at the base, acute to subacute or obtuse at the apex, median lobe entire or serrate or crenate-serrate on the margins towards the apex, lateral lobes coarsely serrate or dentate, truncate or shallowly wide-cordate at the base, thinly chartaceous, 5–7-nerved from the base, sparingly pubescent on both surfaces and sparingly to densely setose along the midrib and main nerves on both surfaces; lateral nerves in 4–8 pairs, scarcely prominent above, slightly so beneath.
    Inflorescences
    Inflorescences up to 8.5 cm long, on peduncles up to 5.5 cm long, terminal and/or leaf-opposed, usually comprised of male flowers with 2–3 female flowers below, rarely all male or all female; male bracts 2 mm long, elliptic-lanceolate; male bracteoles 1 mm long, linear; female bracts 3 mm long, ovate; female bracteoles resembling the male bracts.
    Flowers
    Male flowers: pedicels 1 mm long; buds 3-lobed to subglobose; calyx lobes 1.5 × 1 mm, ovate, subacute, subglabrous, yellow; stamens 3, less than 1 mm long; pistillode 3-lobed, the lobes truncate. Female flowers: pedicels 1 mm long, extending to up to 4 mm in fruit; calyx lobes 3, sometimes with 1–4 small additional lobules, 2 × 2 mm, accrescent to 7 × 8 mm, each lobe deeply pectinately 9–15-lobulate, the lobules linear-lanceolate, ± equalling the width of the calyx-lobe rhachis, sparingly puberulous and densely setose, green, the calyx-lobe rhachis ± ovate, sparingly puberulous without, glabrous within, green at the base and otherwise yellowish without, whitish and somewhat woody at length within; ovary 1.5 mm in diameter, 3-lobed, setose; styles 3, 2–3 mm long, suberect, connate to about halfway, sparingly pubescent at the base, otherwise glabrous, stigmas smooth, ± recurved at the tips.
    Male
    Male flowers: pedicels 1 mm long; buds 3-lobed to subglobose; calyx lobes 1.5 × 1 mm, ovate, subacute, subglabrous, yellow; stamens 3, less than 1 mm long; pistillode 3-lobed, the lobes truncate.
    Female
    Female flowers: pedicels 1 mm long, extending to up to 4 mm in fruit; calyx lobes 3, sometimes with 1–4 small additional lobules, 2 × 2 mm, accrescent to 7 × 8 mm, each lobe deeply pectinately 9–15-lobulate, the lobules linear-lanceolate, ± equalling the width of the calyx-lobe rhachis, sparingly puberulous and densely setose, green, the calyx-lobe rhachis ± ovate, sparingly puberulous without, glabrous within, green at the base and otherwise yellowish without, whitish and somewhat woody at length within; ovary 1.5 mm in diameter, 3-lobed, setose; styles 3, 2–3 mm long, suberect, connate to about halfway, sparingly pubescent at the base, otherwise glabrous, stigmas smooth, ± recurved at the tips.
    Fruits
    Fruit 0.6 × 1 cm, 3-lobed, smooth, sparingly puberulous, setose on the keels.
    Seeds
    Seeds 3.5 mm in diameter, subglobose, pale grey, sparingly flecked with chestnut-brown, and with scattered circular yellow patches fringed with white papillae.

    Distribution

    Native to:

    Botswana, Cape Provinces, Namibia, Northern Provinces, Zimbabwe

    Tragia dioica Sond. appears in other Kew resources:

    First published in Linnaea 23: 109 (1850)

    Accepted by

    • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0