According to Flora of Tropical East Africa under the synonym Anagallis tenuicaulis[FTEA]
Primulaceae, P. Taylor. Flora of Tropical East Africa. 1958
- Perennial; stems decumbent, branched or rarely simple, distinctly winged, up to 40 cm. long.
- Lower leaves opposite or subopposite, upper alternate, sessile or subsessile, broadly ovate, acute or shortly acuminate, basally rounded or subcordate, 3–10 mm. long.
- Flowers in few- to many- flowered terminal racemes up to 15 cm. long; pedicels spreading, filiform, up to 15 mm. long.
- Calyx-segments 5, lanceolate, acuminate, 2.5–3.5 mm. long, 5-nerved.
- Corolla subcampanulate, white, subpersistent in fruit; lobes 5, narrowly oblong; apex truncate, shortly mucronate to tridentate, 4–5 mm. long, 5-nerved.
- Filaments filiform, bearded in the lower half. Anthers oblong, obtuse, 0.4–0.7 mm. long, Capsule about 1.5 mm. in diameter.
- Seeds 0.5–0.6 mm. long.
- Bogs, swamps and damp grassland; 1000–1800 m.
- K3 K5 T5 T8 U1 U3 U4 southwards to Southern Rhodesia, Natal and Madagascar.
According to Flora Zambesiaca under the synonym Anagallis tenuicaulis[FZ]
Primulaceae, F. K. Kupicha. Flora Zambesiaca 7:1. 1983
- Weakly erect or straggling perennial herb.
- Stems up to 35 cm. long or more, branched or rarely simple, with narrowly winged ribs.
- Leaves 5–10 mm. long, opposite or alternate, broadly ovate to ovate, the apex acute or mucronate, subsessile or shortly petiolate.
- Flowers in short or long racemes or occasionally solitary and axillary, on pedicels 6–17 mm. long.
- Calyx–lobes 2·5–4 mm. long, lanceolate–acuminate.
- Corolla white; lobes 3·5–5 .long, narrowly elliptic with apex truncate, mucronate or tridentate.
- Stamens c. 2/3 long as petals, the filaments slender above, expanded below, here densely bearded, briefly connate, adnate to the corolla for c. 0·5 mm., lower part of corolla tube sometimes with conspicuous red granules; anthers 0·4–0·7 mm. long, oblong.
- Capsule c. 1·5 mm. in diameter, many–seeded, circumscissile.
- Seeds 0·5–0·65 mm. long.
First published in Willdenowia 39: 53 (2009)
-  (2006) Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps
-  (1983) Flora Zambesiaca 7(1): 1-394. Royal Botanic Gardens, Kew
-  (1971) Flore du Congo du Rwanda et du Burundi , Primulaceae: 1-15. Jardin Botanique National de Belgique, Bruxelles
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2017. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
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