Eriosema rhynchosioides Baker

First published in J. Linn. Soc., Bot. 15: 94 (1876)
This species is accepted
The native range of this species is Burundi to S. Tropical Africa. It is a perennial or tuberous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian bushland and thicket, Zambezian woodland
Morphology General Habit
Perennial, Not climbing, Herb
[ILDIS]

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

Morphology General Habit
Prostrate perennial herb, with several sparsely branched stems from a rootstock consisting of several fusiform tubers up to 7 cm. long and 1·2 cm. wide.
Morphology Stem
Stems slender, up to ± 70 cm. long, with quite long internodes, pubescent to velvety and with some longer bristly hairs as well.
Morphology Leaves
Leaflets 3, elliptic or ovate, 1·3–6·5 cm. long, 0·8–3 cm. wide, acute to mostly rounded but mucronulate at the apex, rounded at the base, glabrescent to pubescent above, glandular and pubescent on the nerves to densely velvety beneath; venation raised beneath, dark reddish in dry state; petiole 0·7–2·5 cm. long; rhachis 6–10 mm. long; petiolules 2 mm. long; stipules narrowly triangular, 4–5 mm. long, 1·2 mm. wide, pubescent, veined.
Morphology Reproductive morphology Inflorescences
Racemes axillary, short, 1–20-flowered; rhachis 0·5–2 cm. long; peduncle 1·5–9 cm. long, pubescent and with longer hairs; pedicels ± 2 mm. long; bracts deciduous, ovate, 2–3 mm. long, 1·5 mm. wide, pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent and glandular, 3·5–5 mm. long; lobes lanceolate, ± equalling the tube.
Morphology Reproductive morphology Flowers Corolla
Standard dull yellow outside tinged or veined with red, yellow or orange inside, obovate or rhombic, 0·6–1·25 cm. long, 3·5–7 mm. wide, densely pubescent and also glandular in median area.
Morphology Reproductive morphology Fruits
Pods oblong, 1–1·6 cm. long, 7–9 mm. wide, with short pubescence and also longer ferruginous hairs ± 1 mm. long and scattered glands.
Morphology Reproductive morphology Seeds
Seeds pale pinkish-brown with dark speckling or black, elliptic-oblong, longest dimension (3–)4·5–5 mm., shorter dimension 3–4 mm., 1·2–2 mm. thick; rim-aril brown.
[FTEA]

Leguminosae, B. Mackinder, R. Pasquet, R. Polhill and B. Verdcourt. Flora Zambesiaca 3:5. 2001

Morphology Leaves Leaflets
Leaflets 3, 1.3–6.5 × 0.8–3 cm, elliptic or ovate, acute to mostly rounded but mucronulate at the apex, rounded at the base, glabrescent to pubescent above, glandular and pubescent on the nerves to densely velvety beneath; venation raised beneath, dark reddish in dry state; petiole 7–25 mm long; rhachis 6–10 mm long; petiolules 2 mm long; stipules 4–5 × 1.2 mm, narrowly triangular, pubescent, veined.
Morphology Reproductive morphology Inflorescences
Racemes axillary, short, 1–20-flowered; rhachis 0.5–2 cm long; peduncle 1.5–9 cm long, pubescent and with longer hairs; pedicels c. 2 mm long; bracts deciduous, 2–3 × 1.5 mm, ovate, pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent and glandular, 3.5–5 mm long; lobes lanceolate, ± equalling the tube.
Morphology Reproductive morphology Flowers Corolla
Standard dull yellow outside tinged or veined with red, yellow or orange inside, 6–12.5 × 3.5–7 mm, obovate or rhombic, densely pubescent and also glandular in the median area.
Morphology Reproductive morphology Fruits
Pods 10–16 × 7–9 mm, oblong, with short pubescence and also longer ferruginous hairs c. 1 mm long and scattered glands.
Morphology Reproductive morphology Seeds
Seeds pale pinkish-brown with dark speckling or black, (3)4.5–5 × 3–4 × 1.2–2 mm, ellipsoid-oblong; rim aril brown.
Morphology General Habit
Prostrate perennial herb, with several sparsely branched stems from a rootstock consisting of several fusiform tubers up to 7 × 1.2 cm.
Morphology Stem
Stems slender, up to c. 70 cm long, with quite long internodes, pubescent to velvety and with some longer bristly hairs as well.
[FZ]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • 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

    • 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 Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • World Checklist of Vascular plants (WCVP)

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0