Sebaea brachyphylla Griseb.

First published in Gen. Sp. Gent.: 170 (1838)
This species is accepted
The native range of this species is Nigeria to Ethiopia and S. Tropical Africa, Madagascar. It is an annual and grows primarily in the wet tropical biome.

Descriptions

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]

Gentianaceae, J. Paiva and I. Nogueira. Flora Zambesiaca 7:4. 1990

Morphology General Habit
Erect annual herb up to 40 cm. tall.
Morphology Stem
Stem slender, unbranched or branched (sometimes almost from the base), 4-ridged.
Morphology Leaves
Leaves, sessile, 5-nerved; lamina 5–12 x 5–14 mm., ovate-circular to subreniform, cordate at the base, obtuse of shortly apiculate at the apex.
Morphology Reproductive morphology Flowers
Flowers yellow or pale yellow, in terminal few to many flowered dichotomous cymes, very rarely solitary; pedicels 0.3 mm. long; bracts 2–3 mm. long, elliptic-lanceolate.
Morphology Reproductive morphology Flowers Calyx
Calyx segments 5, 2.5–5 x 1.5–3 mm. long, ovate-lanceolate, acute at the apex, with a short wing on the keel, broader at or above the middle.
Morphology Reproductive morphology Flowers Corolla
Corolla tube, 3–4 mm. long; lobes 1.5–3.5 x 0.8–1.2 mm. obovate-oblong.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens inserted in the throat of the corolla; filaments 0.2–0.7 mm. long; anthers 0.5–0.7 mm. long with a minute ovoid-ellipsoid apical gland, without basal glands.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary ellipsoid; style 3–5 mm. long, with or without a swelling above the middle; stigma subglobose more or less bilobed.
Morphology Reproductive morphology Fruits
Capsule 2–4 mm. long, ellipsoid.
Morphology Reproductive morphology Seeds
Seeds 0.25–0.3 mm. in diam., cubical; testa frilled.
[FZ]

Gentianaceae, P. Taylor. Flora of West Tropical Africa 2. 1963

Morphology General Habit
Erect herb of wet places up to 60 cm. high
Morphology Reproductive morphology Flowers
Flowers bright yellow.
[FWTA]

Gentianaceae, Sileshi Nemomissa. Flora of Tropical East Africa. 2002

Morphology General Habit
Annual herb 10–50 cm high.
Morphology Stem
Stem unbranched or sometimes branched from the base, many-noded.
Morphology Leaves
Leaves as wide as or wider than long, ovate-orbicular to subreniform, 6–10 mm long, 5–13 mm wide, obtuse, shortly apiculate or distinctly acute, amplexicaul, cordate at the base.
Morphology Reproductive morphology Inflorescences
Inflorescences terminal, of few- to many-flowered dichotomous cymes; pedicels 2–5 mm long; bracts elliptic-lanceolate to broadly ovate, 5 mm long, 3 mm wide, acute, amplexicaul.
Morphology Reproductive morphology Flowers
Flowers 5-merous, yellow. Short-styled form:filament± 0.3 mm long; anthers up to 1 mm long; style 0.3–0.7 mm; stigma clavate, secondary stigma ± confluent to the primary stigma, by no means distinct. Long-styled form:filament 0.4–0.8 mm long; anthers 0.5–0.7 mm long; style 2.1–2.7 mm long, exceeding stamens, with or without distinct secondary swelling or stigma 0.4–0.5 mm from the base of the style, 0.3–0.5 mm long, 0.3–0.4 mm wide, usually as wide or wider than long; stigma globose to ± bilobed, capitate, 0.25 mm long, 0.4 mm wide.
Morphology Reproductive morphology Flowers Calyx
Calyx lobes hyaline, lanceolate to ± elliptic-lanceolate, 3–4.5 mm long, 0.9–1 mm wide, acute; calyx wing wider ± above the middle, sometimes at the base.
Morphology Reproductive morphology Flowers Corolla
Corolla tube up to 4.8 mm long; lobes oblong-lanceolate, elliptic-ovate, 2.5–4.6 mm long, 1.5–2 mm wide, obtuse, conspicuously narrowed at the base.
Morphology Reproductive morphology Flowers Androecium Stamens
Filaments inserted in the sinuses of the corolla lobes; anthers 0.5–1 mm long, arced, with a minute ovoid to ellipsoid shortly stipitate apical gland, without basal glands.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary ellipsoid, 2.5–3 mm long, 1–1.5 mm diameter.
Short-styled
Short-styled form:filament± 0.3 mm long; anthers up to 1 mm long; style 0.3–0.7 mm; stigma clavate, secondary stigma ± confluent to the primary stigma, by no means distinct.
Long-styled
Long-styled form:filament 0.4–0.8 mm long; anthers 0.5–0.7 mm long; style 2.1–2.7 mm long, exceeding stamens, with or without distinct secondary swelling or stigma 0.4–0.5 mm from the base of the style, 0.3–0.5 mm long, 0.3–0.4 mm wide, usually as wide or wider than long; stigma globose to ± bilobed, capitate, 0.25 mm long, 0.4 mm wide.
Morphology Reproductive morphology Fruits
Capsule ellipsoid, 5.6–7.2(–8) mm long, 2–4 mm diameter.
Morphology Reproductive morphology Seeds
Seeds numerous, 0.3–0.5 mm long, surface with continuous wing-like outgrowths.
Figures
Fig. 2 (p. 8).
Habitat
Moist and boggy sites in upland and montane grassland, heath zone and moorland; (1000–)1400–3450(–4050) m
Distribution
K2 K3 K4 K5 K6 T1 T2 T4 T6 T7 T8 U1 U2 U3
[FTEA]

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
  • Flora of West Tropical Africa

    • Flora of West Tropical 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 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
  • 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