|Photo Ken Hill
|The Cycad Pages
- Encephalartos septentrionalis Schweinf., Bot. Zeit. Berlin 29: 334 (1871). I—K
- "TYPE: Sudan, Gumanga, Schweinfurth 2952 (syn. K); near Nganye, Schweinfurth 3992 (syn. K)."
Described in 1871 by German botanist
yellowish cones; long-stalked seed cones; dentate leaflets with teeth
crowded to the base on the lower margin.
Distribution and habitat:
Not listed in the
1997 IUCN Red List of Threatened Plants.
Plants arborescent; stem 2 m tall, 30 cm diam.
Leaves 100-150 cm long, light or bright green, highly glossy, flat
(not keeled) in section (opposing leaflets inserted at 180° on rachis);
rachis green, straight, stiff or gently curved, somewhat lax, not spirally
twisted; petiole straight, with more than 12 prickles; leaf-base collar not
present; basal leaflets reducing to spines.
Leaflets lanceolate, strongly discolorous, not overlapping, not
lobed, insertion angle horizontal or obtuse (45-80°); margins flat; upper
margin heavily toothed (more than 3 teeth); lower margin heavily toothed (more
than 3 teeth); median leaflets 7-18 cm long, 15-35 mm wide.
Pollen cones 8-10, narrowly ovoid, green or brown, 20-22 cm long, 6-8
Seed cones ovoid, green or brown, 30-35 cm long, 18-20 cm diam.
Seeds oblong, 23-35 mm long, 16-25 mm wide, sarcotesta red.