Skip to main content
  1. Family: Polygalaceae Hoffmanns. & Link
    1. Genus: Polygala Tourn. ex L.
      1. Polygala usafuensis Gürke

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

    [FTEA]

    Polygalaceae, Jorge Paiva. Flora of Tropical East Africa, 2007

    Type
    Type: Tanzania, Mbeya District: Usafwa, Goetze 1032 (B†, holo.; BM!, lecto.; E, P, isolecto.)
    Habit
    Annual herb, 1.5–2 m tall
    Stem
    Stems erect, robust, simple or few-branched, densely patent-pubescent, rarely with a few crisped hairs, to glabrescent
    Leaves
    Leaves alternate, shortly petiolate (petiole 0.5 mm), lanceolate to very narrowly elliptic, 10–70 × 0.5–10 mm, acute, base cuneate, pubescent to glabrescent
    Flowers
    Flowers orange-pink to salmon-pink, in many-flowered simple or few-branched terminal racemes up to 35 cm long, rachis densely pubescent; bracts lanceolate, 1–2 mm long, pubescent, persistent; bracteoles linear-lanceolate, 0.5–1 mm long, pubescent, persistent; pedicels 2–3 mm, pubescent
    Calyx
    Posterior sepal keel-shaped, 3–5 × 1–2 mm; wing sepals broadly elliptic, 6–8 × 4–6 mm; anterior sepals keel-shaped, 2.5–3.5 × 1–2 mm, free
    Corolla
    Upper petals obliquely obovate, 4–7 × 2–3 mm, with a finger-like lobe at the apex, pubescent on the back; carina 6–8 mm long, pubescent on the back; crest 2.5–4(–5) mm long, fimbriate
    Stamens
    Stamens 8
    Fruits
    Capsule oblong-obovate in outline, 5–6(–7) × 2.5–3(–3.5) mm, yellowish when dried, unwinged or very narrowed winged, ciliate
    Seeds
    Seeds cylindric, (3–)3.5–5 × 1–1.5 mm, with white silky hairs, 1.5 mm long; caruncle subsymmetric, kidney-shaped, with scarcely developed appendages
    Figures
    Fig 7: 3, p 14
    Ecology
    Open woodland and wooded grassland, sometimes in marshes or seepage grassland; 600–2500 m
    Distribution
    Flora districts: T4 T5 T7 T8 Range: From Sudan and Congo-Kinshasa to Angola and Mozambique
    [FZ]

    Polygalaceae, A. W. Exell. Flora Zambesiaca 1:1. 1960

    Habit
    Annual 1.4–2 m. tall; stems crisped-pubescent.
    Leaves
    Leaves 1–7 x 0.2–0.8 cm., linear to very narrowly elliptic, pubescent.
    Flowers
    Flowers salmon-pink to orange-red, pedicels 2–3.5 mm. long, in elongated, terminal racemes up to 30 cm. long with densely pubescent rhachis and persistent bracts 2 mm. long and bracteoles 1 mm. long.
    Calyx
    Posterior sepal 3 mm. long; wing sepals 5–8 x 3–6 mm., broadly elliptic to sub-orbicular, pubescent; anterior sepals 2 mm. long, free.
    Corolla
    Upper petals 4.5 x 2.5 mm., irregularly obovate with a finger-like projection at the apex and one margin bent over; carina 8 x 2.8 mm., minutely ciliate on the upper margins, crest 4–5 mm. long.
    Stamens
    Stamens 8.
    Fruits
    Capsule 5–6 x 2.2–3 mm., narrowly obovate-oblong in outline, ciliate on the margin.
    Seeds
    Seeds 2.5 x 1 mm., cylindric, densely sericeous; caruncular appendages scarcely developed.

    Images

    Distribution

    Native to:

    Angola, Malawi, Mozambique, Tanzania, Zambia, Zaïre

    Synonyms

    Other Data

    Polygala usafuensis Gürke appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1975 Kassner [2771a], Congo K000231569 isosyntype
    Jan 1, 1975 Kassner [2862a], Congo K000231570 isosyntype
    Jan 1, 1975 Kassner [2836], Congo K000231571 isosyntype
    Greenway, P.J. [8188], Zambia 3178.000
    Bidgood, S. [5336], Tanzania K000190566

    Bibliography

    First published in Bot. Jahrb. Syst. 30: 337 (1901)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Paiva, j. (2007). Flora of Tropical East Africa, Polygalaceae: 1-60.
    • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1966). Flora Zambesiaca 2(2): 353-653. Royal Botanic Gardens, Kew.
    • Exell, A.W. & Wild, H. (eds.) (1960). Flora Zambesiaca 1(1): 1-336. Royal Botanic Gardens, Kew.
    • Robyns, W. & al. (eds.) (1948-1963). Flore du Congo Belge et du Ruanda-Urundi 1-10.

    Literature

    Kew Backbone Distributions

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1966). Flora Zambesiaca 2(2): 353-653. Royal Botanic Gardens, Kew.
    • Exell, A.W. & Wild, H. (eds.) (1960). Flora Zambesiaca 1(1): 1-336. Royal Botanic Gardens, Kew.
    • Robyns, W. & al. (eds.) (1948-1963). Flore du Congo Belge et du Ruanda-Urundi 1-10.

    Flora of Tropical East Africa

    • Fontqueria 50: 206, t. 12/d, t. 39/d (1998).
    • F.Z. 1, 1: 324, t. 56/15 (1960)
    • F.C.B. 7: 257, fig. 7E (1958)
    • E.J. 30: 337 (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 2020. 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 2020. 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