Erythrina baumii Harms

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Photo: Doreen Bolnick

Photo: Eve Hughes
Kalabo District, Liuwa Plains N.P.

Photo: Mike Bingham
Kaoma District, Luampa.

Photo: Nicholas Wightman
Kangenju area, Shangombo District, Western Province

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Synonyms:	Erythrina mendesii Torre
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Description:	Suffrutex with annual aerial stems arising from a woody rootstock. Stems slender, up to 70 cm tall armed with scattered recurved prickles. Leaflets densely golden-velvety when young, less dense when mature, sometimes aculeate on midvein above; terminal leaflet 6–10 × 3.5–8 cm, subrhombic to rhombic to broadly ovate or elliptic to lanceolate; lateral leaflets 6.5–9 × 4–6 cm, ovate-lanceolate to ovate or subrhombic; petiole and rhachis sometimes aculeate; petiole 6–16 cm long; rhachis 1.5–4 cm long; stipels 1–2 mm long, petiolules 3–5 mm long; stipules 5–6 mm long, ovate-lanceolate. Inflorescence erect, flowers appearing before or with young leaves; peduncle 10–20 cm long; rhachis 5–9 cm long, both densely grey tomentose; bracts linear, caducous; pedicels 2–4 mm long, densely grey tomentose; bracteoles 4–5 mm long, linear. Calyx spathaceous, 1.2–2 cm long, split ventrally almost to the base, densely white tomentose; lobes obscure, up to 3 mm long, incurved. Corolla red, glabrous; standard 3–4.8 × 1–2 cm, narrowly elliptic, elliptic or oblong-elliptic; wings 7–14 × 4–6 mm; keel petals 4–9 × 4–7 mm. Vexillary stamen free almost to the base, others united along half their length. Ovary 1.5–1.8 cm long, narrowly cylindrical, densely grey tomentose. Pod black, 5–9 × 1.4–1.6 cm, falcate, moniliform, c. 4-seeded. Seeds (fide Krukoff & Barneby) ochre, 8 × 6 mm, with a narrow black line near the hilum.
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Worldwide distribution:	Zambia,Botswana, Namibia, Angola, and Dem. Rep. Congo
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Literature:	Hennessy, E. (1972). South African Erythrinas: 28, t. 10. Mackinder, B. (1993). Erythrina baumii Harms Kirkia 14 Page 116. Mackinder, B. et al. (2001). Papilionoideae Flora Zambesiaca 3(5) Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 66. Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 212. White, F. (1962). Forest Flora of Northern Rhodesia Oxford Univ. Press.

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