1. Family: Fabaceae Lindl.
    1. Genus: Lathyrus L.
      1. Lathyrus hygrophilus Taub.

        This species is accepted, and its native range is Ethiopia to Malawi.

    [FZ]

    Leguminosae, various authors. Flora Zambesiaca 3:7. 2003

    Habit
    Straggling or climbing perennial herb; rootstock not seen but probably small.
    Stem
    Stems numerous, much branched, 0.5–1.5 mm in diameter, at first pubescent, later glabrous or subglabrous.
    Leaves
    Leaves 2-foliolate; leaflets 13–65 × 2–12 mm, linear to elliptic, acute to rounded but mucronulate at the apex, cuneate at the base, glabrous to pilose on both surfaces or only beneath, sometimes with numerous small red ellipsoid glands; petiole 3–15 mm long, very narrowly winged, produced beyond the leaflets into an unbranched tendril; petiolules 0.5–1 mm long; stipules 5–12 mm long, narrowly semi-sagittate with the lobes narrow, sometimes with a small tooth between the lobes.
    Flowers
    Flowers solitary or less often paired; peduncle 2–25(33) mm long, pubescent; pedicels 4–6 mm long, pubescent; bract 1–1.3 mm long, hyaline, subulate, soon caducous or absent.
    Calyx
    Calyx pubescent or pilose to glabrous; tube 2–2.5 mm long; lobes 2–5.5 mm long, narrowly triangular-subulate.
    Corolla
    Corolla whitish, purplish or pinkish,11–13 mm long; standard greenish-white, pinkish or yellowish, usually with purple lines inside, 12–13 × 9 mm, obovate, emarginate, narrowed to the base into a 4 mm long, broad claw; wings c. 11 mm long, the lamina falcate-obovate, with a short conjunctival flap above the auricle and adhering to the keel; keel a little shorter than the wings, incurved, obtuse, the lamina slightly pouched above the small auricles, the claw c. 4 mm long, straight.
    Stamens
    Vexillary stamen adhering to the others; filament sheath 7–7.5 mm long; free parts of the filaments 5–5.5 mm long.
    Style
    Style 4–5 mm long, pubescent towards the apex on the upper side.
    Fruits
    Pod 25–48 × 5–6 mm, linear-oblong, laterally compressed, glabrous to pubescent or ciliate on the margins; valves with a scarcely evident reticulate venation.
    Seeds
    Seeds usually 5–8, dark brown to purplish-brown, with maximum dimensions of 4.1 × 2.9 × 1.8 mm, subglobose to ellipsoid.
    [FTEA]

    Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

    Habit
    Straggling or climbing herb 0·3–2·1 m. long, often considered to be an annual, but no rootstocks preserved and, judging by the woody bases of some stems and several field notes, probably always a perennial.
    Stem
    Stems much branched, at first usually pubescent, later glabrous, sometimes with sparse to dense small red glands.
    Leaves
    Leaves 2-foliolate; leaflets linear to elliptic or lanceolate, 1·1–7 cm. long, 0·15–1·4 cm. wide, acute to narrowly rounded but mucronulate at the apex, cuneate at the base, glabrous to pubescent and often with pale dots on both surfaces; petiole 0·2–2 cm. long, generally terminated by an unbranched tendril; stipules narrowly semisagittate, 0·5–1·2 cm. long, the lobes narrow.
    Flowers
    Flowers solitary or, less often, paired; peduncle 0·2–2 cm. long; pedicels (3–)4–6 mm. long, the rhachis not pro-longed into an awn-like bract.
    Calyx
    Calyx pubescent; tube 3–3·5 mm. long; lobes triangular or lanceolate, 2–4 mm. long.
    Corolla
    Corolla white, pink or purplish; standard often with pink or purple veins, obovate-oblong, 0·8–1·4 cm. long, 6·5–10 mm. wide.
    Fruits
    Pods linear-oblong, compressed, 4–5 cm. long, 4·5–6·5 mm. wide, glabrous to pubescent or ciliate only along the margins; valves with scarcely evident reticulate venation.
    Seeds
    Seeds dark brown or purplish-brown, subglobose, somewhat compressed, 2·5–3 mm. in diameter.
    Figures
    Fig. 155.
    Habitat
    Upland grassland, moorland, bamboo forest, forest edges, also in swampy places; (1380–)1800–4100 m.
    Distribution
    K3 K4 K5 T2 T4 T7 U2 U3
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Afromontane grassland, Afromontane(upland) bushland and thicket., Afromontane (upland) shrubland ('moorland')., Afromontane bamboo thicket.
    Habit
    Perennial, Climbing, Herb

    Images

    Distribution

    Native to:

    Ethiopia, Kenya, Malawi, Rwanda, Sudan, Tanzania, Uganda, Zaïre

    Lathyrus hygrophilus Taub. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Volkens, G. [581], Tanzania K000418303
    Volkens, G. [867], Tanzania K000418304 Unknown type material

    First published in H.G.A.Engler, Pflanzenw. Ost-Afrikas, C: 219 (1895)

    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.
    • Pope, G.V., Polhill, R.N. & Martins, E.S. (eds.) (2003). Flora Zambesiaca 3(7): 1-274. Royal Botanic Gardens, Kew.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Troupin, G. (ed.) (1983). Flora du Rwanda 2: 1-603. Musee Royal de l'Afrique Centrale.

    Literature

    Kew Backbone Distributions
    • Pope, G.V., Polhill, R.N. & Martins, E.S. (eds.) (2003). Flora Zambesiaca 3(7): 1-274. Royal Botanic Gardens, Kew.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Troupin, G. (ed.) (1983). Flora du Rwanda 2: 1-603. Musee Royal de l'Afrique Centrale.
    Flora of Tropical East Africa
    • O. Hedberg, Afroalpine Vascular Plants p. 122, 292 (1957).
    • Cufod., Enumeratio Plantarum Aethiopiae Spermatophyta (Supplement in Bull. Jard. Bot. Brux.) p. 309 (1955).
    • Boutique in Flore du Congo Belge et du Ruanda-Urundi, 6: 78, t. 6 (1954).
    • A.J. Jex-Blake, Some Wild Flowers of Kenya p. 46 (1948).
    • Robyns, Flore des Spermatophytes du Parc National Albert 1: 336, t. 31 (1948), pro parte.
    • Bak. f., Leguminosae of Tropical Africa: 349 (1929).
    • Taub. in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 219 (1895).
    International Legume Database and Information Service
    • Gillett, J. B. et al. (1971). Papilionoideae. In: Fl. Trop. E. Africa, Milne-Redhead & Polhill

    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/

    International Legume Database and Information Service
    International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
    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