Encephalartos trispinosus
| Encephalartos trispinosus | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| (unranked): | Gymnosperms |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | Zamiaceae |
| Genus: | Encephalartos |
| Species: | E. trispinosus
|
| Binomial name | |
| Encephalartos trispinosus R.A. Dyer
| |
Encephalartos trispinosus is a species of cycad that is native to South Africa.[2]
Description[]
It is a cycad with an erect stem up to 1 m tall and with a diameter of 25-30 cm, often with secondary stems originating from basal suckers. The leaves, pinnate, arranged in a crown at the apex of the stem, from gray-greenish to blue, are up to 1.4 m long, composed of numerous pairs of obovate, coriaceous, tomentose leaves, up to 18 cm long, with 1-3 spines on the lower margin and a pungent apex. It is a dioecious species, with male specimens that have 1 or rarely 2 erect, sub-cylindrical cones, 25–35 cm long and about 8 cm broad, yellow to green in color, and female specimens with solitary cylindrical-ovoid cones, long about 40–50 cm and wide 16–18 cm, with a conical apex, yellow to greenish-yellow in color. The seeds are roughly ovoid, about 3.5 cm long, covered with a brown to red sarcotesta.[3]
References[]
- ^ Donaldson, J.S. (2010). "Encephalartos trispinosus". IUCN Red List of Threatened Species. 2010: e.T41926A10600535. doi:10.2305/IUCN.UK.2010-3.RLTS.T41926A10600535.en. Retrieved 13 November 2021.
- ^ "Encephalartos trispinosus in Tropicos".
- ^ "Encephalartos trispinosus". PlantNET Home Page - National Herbarium of New South Wales. Retrieved 2019-09-19.
External links[]
Media related to Encephalartos trispinosus at Wikimedia Commons
Data related to Encephalartos trispinosus at Wikispecies
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- IUCN Red List vulnerable species
- Encephalartos
- Endemic flora of South Africa
- Vulnerable flora of Africa
- Cycad stubs