Malvaceae
Sida

Sida tenuicarpa Vollesen

First published in Kew Bull. 41: 92 (1986)
This species is accepted
The native range of this species is Ethiopia to E. Central & E. Tropical Africa. It is a subshrub or shrub and grows primarily in the seasonally dry 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: low confidence
[AERP]

Malvaceae, Bernard Verdcourt & Geoffrey Mwachala. Pavonia, B Verdcourt; Kosteletzkya, OJ Blanchard Jr.; Gossypium, P Fryxell & B Verdcourt. Flora of Tropical East Africa. 2009

Type
Type: Ethiopia, Gonder, Bahar Dar to Debre Marcos, Getachew & Gilbert 998 (K!, holo.; ETH, iso.)
Morphology General Habit
Erect to spreading much-branched shrublet 0.3–1 m tall.
Morphology Stem
Stems sparsely to densely appressed stellate-pubescent
Morphology Leaves
Leaves cuneate to obovate or oblanceolate, 4–18(–26) × 1.5–9 mm, notched at apex, cuneate at base, entire or rarely with 1–2 teeth on either side, ± glabrous above, sparsely stellate-pubescent; petiole 1.5–5 mm long; stipules filiform to linear, 1–4 mm long
Morphology Reproductive morphology Flowers
Flowers solitary and in up to 8-flowered terminal clusters at ends of branches; pedicel 1–3 mm long; calyx 3–4.5 mm long, appressed stellate-pubescent; lobes 2–3 mm long, 1 mm wide
Morphology Reproductive morphology Flowers Corolla
Corolla yellow to orange-yellow, sometimes with reddish veins; petals 7–10 mm long with glabrous to ciliate claw.
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal column 2.5–3.5 mm long, glabrous to sparsely pubescent
Morphology Reproductive morphology Fruits
Mericarps 5, 2–2.5 × 1.5–2 mm, with birostrate beak 0.5–1 mm long, hairy at apex, back smooth without sculpture, sides thin and papery soon completely disintegrating and releasing seed.
Morphology Reproductive morphology Seeds
Seed 1.5–2 mm long, glabrous or with few hairs
Figures
Fig 27, p 151
Ecology
Dry short grassland, usually overgrazed, old cultivations, lakesides, riverine, forest glades, roadsides; (0 (see note)–)750–2150 m
Note
Tweedie 2379 (Kenya, Kilifi District: near Sabaki R. ferry, June 1962) from riverine flats at ± sea level is the only specimen seen from K 7 or such a low altitude. Mrs. Tweedie mentions the flats were swept by floods in November. Vollesen suspected mislabelling but Mrs. Tweedie was extremely careful. Seed might have been carried a long way. The species has been cultivated for broom-making.
Distribution
Flora districts: U2 U3 U 4 ; K1 K3 K4 K5 K6 K 7 (see note); T1 T2 T7 Range: Congo-Kinshasa, Ethiopia
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. 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 2026. 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