1. Family: Euphorbiaceae Juss.
    1. Genus: Acalypha L.
      1. Acalypha psilostachya Hochst. ex A.Rich.

        This species is accepted, and its native range is Cameroon to Ethiopia and S. Tropical Africa.

    [FZ]

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

    Habit
    An erect or scandent woody perennial herb or subshrub up to 3 m tall.
    Stem
    Stems tomentose, puberulous, hirsute or glandular (var. glandulosa), greenish at first, often becoming reddish-brown.
    Petiole
    Petioles up to 11 cm long, fairly slender.
    Leaf lamina
    Leaf blades 2–15 × 1–8 cm, ovate to ovate-lanceolate, acuminate or often caudate at the apex, crenate or serrate, rounded or cordate at the base, membranous to thinly chartaceous, sparingly to evenly pubescent or hirsute, especially on the midrib and main nerves on both surfaces, or else subglabrous, 5–9-nerved from the base; lateral nerves in 4–6 pairs.
    Stipules
    Stipules 2–4 mm long, linear-lanceolate or setaceous.
    Inflorescences
    Inflorescences up to 9 cm long, spicate, axillary, solitary or paired, comprised mostly of male flowers, or at least half are male flowers, with 1–several female flowers at the base or in the lower half, rarely terminated by a solitary allomorphic female flower; male bracts minute; female bracts deeply digitately 5–7-partite, the lobes accrescent to up to 8 × 12 mm, linear-lanceolate to ovate-lanceolate, glabrous, pubescent or hirsute, sometimes glandular (var. glandulosa), 1-flowered.
    Male
    Male flowers subsessile; buds rounded to 4-angled, pubescent, reddish; anthers yellowish.
    Flowers
    Female flowers sessile; sepals 3, 0.5 mm long, ovate, ciliate; ovary 0.3 mm in diameter, somewhat 3-lobed, pubescent and tomentose; styles 2–3 mm long, free, laciniate, white. Allomorphic female flowers (when present) obovoid, with an apical fimbriate whorl, sparingly puberulous. Male flowers subsessile; buds rounded to 4-angled, pubescent, reddish; anthers yellowish.
    Female
    Female flowers sessile; sepals 3, 0.5 mm long, ovate, ciliate; ovary 0.3 mm in diameter, somewhat 3-lobed, pubescent and tomentose; styles 2–3 mm long, free, laciniate, white. Allomorphic female flowers (when present) obovoid, with an apical fimbriate whorl, sparingly puberulous.
    Fruits
    Fruits 1.5 × 2.5 mm, 3-lobed, ± smooth or slightly tubercled, pubescent above, tomentose below.
    Seeds
    Seeds 1 × 1 mm, ovoid-subglobose, smooth, brown, with a small velar caruncle.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zaïre

    Acalypha psilostachya Hochst. ex A.Rich. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 1910 Schimper [560], Ethiopia K000431028 Unknown type material
    Ash [1045], Ethiopia 35521.000
    Schimper [560], Ethiopia K000431029 Unknown type material
    Harris, T. [247], Mozambique K000613322

    First published in Tent. Fl. Abyss. 2: 246 (1850)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Strugnell, A.M. (2006). A checklist of the Spermatophytes of Mt. Mulanje, Malawi Scripta Botanica Belgica 34: 1-199.
    • 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.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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