Senegalia goetzei (Harms) Kyal. & Boatwr.

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

Leguminosae, J.P.M. Brenan. Flora Zambesiaca 3:1. 1970

Morphology General Habit

Tree 3-20 m. high, with rounded crown and rough grey or brown bark; young branchlets glabrous to pubescent.

Morphology Leaves Stipules

Stipules not spinescent.

Morphology General Prickles

Prickles in pairs just below the nodes, pale then dark-brown or grey, up to 7 mm. long, hooked downwards.

Morphology Leaves

Leaves: petiole 1·3-5 cm. long, with or rarely without a small gland; rhachis glabrous to pubescent, usually glandular between the top 1-3(5) pairs of pinnae (and sometimes the basal pair as well); pinnae 3-10 pairs; leaflets (2)5-20(25) pairs, (2)3-17(25) x (0·75)1-7(14) mm., rounded to mucronate or subacute at the apex, usually distinctly asymmetric at the base, glabrous to pubescent; venation somewhat prominent beneath.

Morphology Reproductive morphology Flowers

Flowers sessile or nearly so, white or slightly yellowish, in spikes (2)3-12 cm. long on 0·4-4·5 cm. long peduncles, produced with the leaves; axis glabrous to pubescent.

Morphology Reproductive morphology Flowers Calyx

Calyx 1·5-2·75 mm. long, glabrous.

Morphology Reproductive morphology Flowers Corolla

Corolla 2-3·75 mm. long, 5-lobed, glabrous, exceeding the calyx.

Morphology Reproductive morphology Flowers Androecium Stamens

Stamen-filaments 4·5-6 mm. long; anthers 0·2-0·25 mm. across, with a caducous gland.

Morphology Reproductive morphology Flowers Gynoecium Ovary

Ovary glabrous, very shortly stipitate.

Morphology Reproductive morphology Fruits

Pods dehiscent, (5)8-18 x (1·8)2-3·5 cm., glabrous or nearly so, oblong or irregularly constricted, straight or nearly so, venose, red- to purplish-brown, acuminate or apiculate at the apex.

Morphology Reproductive morphology Seeds

Seeds 8-11 x 8-10 mm., subcircular-lenticular; central areole medium, 4·5-6 x 2·5-4 mm.

M. Thulin et al. Flora of Somalia Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit

Tree up to 20 m high with rounded crown; young branchlets glabrous to pubescent, hairs often yellowish

Morphology General Prickles

Prickles in pairs, 1–7 mm long, hooked downwards or almost straight

Morphology Leaves

Pinnae (3–)4–8(–10) pairs; leaflets (2–)5–23 pairs, 3–25 x (0.75–)1–12.5 mm

Morphology Reproductive morphology Flowers

Flowers yellowish-white in (2–)3–12 cm long spikes

Morphology Reproductive morphology Flowers Calyx

Calyx 1.5–2.75 mm long

Morphology Reproductive morphology Flowers Corolla

Corolla 2–3.75 mm long

Morphology Reproductive morphology Fruits

Pods straight or almost so, dehiscent, (5–)8–18 x (1.8–)2–3.5 cm, transversely veined, glabrous or nearly so

Morphology Reproductive morphology Seeds

Seeds subcircular, compressed, 8–11 mm in diam.; areole c. 5–6 x 4 mm.

Distribution

S3 (Bu’aale) widespread from S Ethiopia southwards to Mozambique.

Ecology

Altitude range c. 50 m.

Note

A. goetzei has not previously been reported from Somalia. The only specimen seen is sterile and the identification is somewhat uncertain. A. goetzei is currently subdivided into two subspecies, subsp. goetzei and subsp. microphylla Brenan, both known from Kenya. With its fairly large leaflets the Somali specimen belongs to subsp. goetzei, although prickles are present on the leaf-rhachis.

Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

Morphology General Habit

Tree 4–20 m. high, with rounded crown and rough, grey or brown bark.

Morphology Branches

Young branchlets glabrous to pubescent.

Morphology Leaves Stipules

Stipules not spinescent.

Morphology General Prickles

Prickles in pairs just below nodes, pale then dark brown or grey, hooked downwards, up to 7 mm. long.

Morphology Leaves

Leaves:petiole with or rarely without a small gland; rhachis glabrous to pubescent, usually glandular between the top 1–3(–5) pairs of pinnae (and sometimes the basal pair as well); pinnae 3–10 pairs; leaflets (2–)5–20(–23) pairs, (2–)3–17(–20) mm. long, (0.75–)1–7(–12.5) mm. wide, rounded to mucronate or subacute at apex, glabrous to pubescent, venation somewhat prominent beneath.

Morphology Reproductive morphology Flowers

Flowers sessile or nearly so, white or slightly yellowish, in spikes (2–)3–12 cm. long on 0.4–4.5 cm. long peduncles, produced with the leaves; axis glabrous to pubescent.

Morphology Reproductive morphology Flowers Calyx

Calyx glabrous, 1.5–2.75 mm. long.

Morphology Reproductive morphology Flowers Corolla

Corolla 2–3.75 mm. long, glabrous, 5-lobed, exceeding the calyx.

Morphology Reproductive morphology Flowers Androecium Stamens

Stamen-filaments 4.5–6 mm. long, free; anthers 0.2–0.25 mm. across, with a caducous gland.

Morphology Reproductive morphology Flowers Gynoecium Ovary

Ovary glabrous, very shortly stipitate.

Morphology Reproductive morphology Fruits

Pods (Fig. 14/16, p. 52) dehiscent, glabrous or nearly so, oblong or irregularly constricted, straight or nearly so, venose, red- to purplish-brown, acuminate or apiculate at apex, (5–)8–17 cm. long, (1.8–)2–3.3 cm. wide.

Morphology Reproductive morphology Seeds

Seeds subcircular-lenticular, 9–10 mm. long, 8–9 mm. wide; central areole medium, 5–6 × 4 mm.

International Legume Database and Information Service

Conservation

Not Threatened

Ecology

Africa: Somalia-Masai wooded grasslands., Somalia-Masai woodland, Zambezian woodland, Zambezian wooded grassland

Morphology General Habit

Perennial, Not climbing, Tree