1. Family: Portulacaceae Juss.
    1. Genus: Portulaca L.
      1. Portulaca hereroensis Schinz

        This species is accepted, and its native range is Central & S. Tanzania to S. Africa.

    [FZ]

    Portulacaceae, H. Wild. Flora Zambesiaca 1:2. 1961

    Habit
    Delicate annual herb with spreading or prostrate often reddish branches up to c. 7 cm. long and 1 mm. in diam.
    Leaves
    Leaves opposite, fleshy, 2–4 × 1–2 mm., elliptic to broadly elliptic or broadly ovate, apex obtuse; stipular hairs fairly numerous, c. 2 mm. long.
    Flowers
    Flowers solitary or 2–3 together at the ends of the branches, surrounded by a cluster of apical leaves and hairs equalling the length of the leaves.
    Calyx
    Sepals up to 3 mm. long, ovate, acute at the apex, pale and rather thin-textured.
    Corolla
    Petals 4, purplish or white, 1–1·5 mm. long, united to about half-way.
    Stamens
    Stamens 4, alternating with the petals.
    Pistil
    Ovary ovoid; style c. 0·5 mm. long, with 4 stigmas.
    Fruits
    Capsule c. 2 mm. long, ovoid-globose, dehiscing horizontally below the middle.
    Seeds
    Seeds many, grey, c. 0–5 mm. in diam., reniform, somewhat laterally compressed, with concentric lines of minute blunt tubercles.
    [FTEA]

    Portulacaceae, Sylvia M. Phillips. Flora of Tropical East Africa. 2002

    Habit
    Delicate annual(?); stems prostrate, red, to ± 15 cm long, slender, radiating and branching from a central root, only infrequently rooting at the nodes, not disarticulating.
    Leaves
    Leaves opposite, very succulent, broadly elliptic to ovate, 3–4.5 mm long, 1.5–2 mm wide, glaucous, concave above, sessile, obtuse; nodes with a whorl of fairly dense hairs 1–2 mm long, white and contrasting with the red stems.
    Inflorescences
    Flowers usually solitary, terminating short lateral branchlets, enclosed by 4 involucral leaves and many white hairs; involucral leaves slightly larger than the stem leaves, keeled.
    Flowers
    Sepals thinly membranous, ovate, 2 mm long, connate in the lower third, obtuse; petals 4, white or pale mauve, 2.5 mm long, connate below the middle into a tube, free lobes obovate-oblong, rounded, sometimes apiculate; stamens 4, alternating with the petals, filaments adherent to the petal bases, anthers at the top of the petal-tube; style very short, stigma 3–4-branched.
    Fruits
    Capsule dehiscing in the lower quarter, lid thinly cartilaginous, pallid, 2–2.5 mm high; seeds 0.6 mm long, grey with a slight metallic sheen, testa cells domed in neat concentric rings, often with a slight central tubercle, cell surface with low papillae.
    Habitat
    A pioneer of bare hardpan soils in woodland, and on shallow soil over rock; 100–1500 m
    Distribution
    T5 T8 southern tropical Africa southwards to South Africa, except Zambia

    Images

    Distribution

    Native to:

    Angola, Botswana, Cape Provinces, Free State, Malawi, Mozambique, Namibia, Northern Provinces, Tanzania, Zimbabwe

    Portulaca hereroensis Schinz appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1899 Dinter [468], Namibia K000075350 Unknown type material
    Exell, A.W. [2716], Angola Sedopsis carrissoana K000313630

    First published in Mém. Herb. Boissier 29: 18 (1900)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Phillips, S.M. (2002). Flora of Tropical East Africa, Portulacaceae: 1-40.
    • Exell, A.W. & Wild, H. (eds.) (1961). Flora Zambesiaca 1(2): 337-581. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Phillips, S.M. (2002). Flora of Tropical East Africa, Portulacaceae: 1-40.
    • Exell, A.W. & Wild, H. (eds.) (1961). Flora Zambesiaca 1(2): 337-581. Royal Botanic Gardens, Kew.
    Flora of Tropical East Africa
    • M.G. Gilbert & S.M. Phillips in Kew Bulletin 55: 795, map 3 (2000).
    • Wild in Flora Zambesiaca 1: 367, t. 69b (1961).
    • Poelln. in F. Fedde, Repertorium Speciorum Novarum Regni Vegetabilis 37: 308 (1934).
    • Schinz in Mém. Herb. Boiss. 20: 18 (1900).

    Sources

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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/