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This species is accepted, and its native range is Tanzania.

[FTEA]

Begoniaceae, Vanessa Plana, Martin J.S. Sands & Henk J. Beentje. Flora of Tropical East Africa. 2006

Type
Type: Tanzania, Songea District: Mahanja [Mahenge], Mbangalaca, Mbanga R., Schlieben 1806 (B, holo.).
Morphology General Habit
Herb 15–25 cm high; stem erect or curved upwards from base, scarcely branched, with few leaves.
Morphology Leaves Stipules
Stipules persistent, membranous, oblong or oblong- lanceolate, 3–8 mm long, margin irregularly glanduliferous, apex obtuse or acute.
Morphology Leaves
Leaves asymmetric, broadly ovate to suborbicular, 4–7.5 × 4–8 cm, base obliquely cordate, margin crenate or crenulate, apex obtuse, glabrous or with a few hairs; venation palmate; petiole 3–10 cm long, glabrous.
Morphology Reproductive morphology Flowers
Female flowers: tepals 5, white or pink, oblong, 4.5–5.5 × 2–2.8 mm; ovary ovoid, 3 × 2 mm, 3-locular, 3-winged; placentation axile; styles three, not branched; stigmatic band lunate. Flowers in axillary bisexual racemes with 3–4 lateral cymes; peduncle 10–18 mm long; bracts ovate to oblong, 1–3 mm long (?caducous/persistent?); pedicels 8–9 mm. Male flowers: tepals 4, white or pink, the outer oblong, 6–7 × 4–4.5 mm, the inner obovate, 5.5–5.6 × 2–2.5 mm; stamens number not known, staminal column 1.5–1.8 mm long, filaments 0.6–0.7 mm long, anthers obtrapeziform, 0.7 mm long.
Morphology Reproductive morphology Fruits
Fruit a broadly ovoid capsule, 6 × 4 mm, wings ± equal, triangular, 3.5–5 mm wide, probably dehiscing along the junction with the wing.
Ecology
Under riverine trees; ± 600 m.
Conservation
Data Deficient (DD).
Note
Recently collected from Udzungwa Mountain National Park, Matundu forest ( T 7) by Luke et al. 11504; largest leaves 9.5 × 9.5 cm; some leaves mottled with white.
Distribution
Flora districts: T7 T8 Range: Not known elsewhere

Native to:

Tanzania

Begonia riparia Irmsch. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 1, 2008 Luke, W.R.Q. et al. [11504], Tanzania K000612557

First published in Bot. Jahrb. Syst. 81: 126 (1961)

Accepted by

  • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

Literature

Flora of Tropical East Africa

  • E.J. 81: 126 (1961).

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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