Jump to content

Encephalartos concinnus

From Wikipedia, the free encyclopedia

Encephalartos concinnus
CITES Appendix I (CITES)[2]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Encephalartos
Species:
E. concinnus
Binomial name
Encephalartos concinnus
R.A. Dyer & Verdoorn 1969

Encephalartos concinnus is a species of cycad in the family Zamiaceae. It is endemic to Zimbabwe. It is known as the Runde cycad.[1]

Description

[edit]

It's a tree-like plant, growing up to 2.5–3 m tall with a 35–45 cm wide stem covered in soft hairs. Its leaves are arranged in a cluster at the top, reaching 150–200 cm in length with about 50 pairs of thin leaflets, each with small spines on the edges and positioned at a 45-80° angle from the stem.

This plant is dioecious, meaning it has separate male and female cones. The male cones are green, 30–50 cm long and 7–10 cm wide, while the female cones are green, 35–45 cm long, 15–20 cm wide, and oval-shaped. The seeds are oblong, measuring 30–35 mm in length and 8–23 mm in width, covered in a brown sarcotesta.[3]

Range

[edit]

This species grows in steep, rocky, misty valleys and woodlands. There are three known subpopulations, though one has possibly been extirpated by collectors. The plant is threatened by overcollection.[1]

There are 3 subpopulations found in:[1]

References

[edit]
  1. ^ a b c d Donaldson, J.S. (2010). "Encephalartos concinnus". IUCN Red List of Threatened Species. 2010: e.T41903A10586667. doi:10.2305/IUCN.UK.2010-3.RLTS.T41903A10586667.en. Retrieved 20 November 2021.
  2. ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ^ Verd., R.A. Dyer & I. (2006-12-11). "Flora of Zimbabwe: Species information: Encephalartos concinnus". zimbabweflora.co.zw. Retrieved 2024-01-03.
[edit]