Encephalartos aplanatus
The specific habitat details are not provided in the text, but it is a cycad species found in Eswatini.·Short cycad
Encephalartos aplanatus is a short cycad species native to Eswatini, characterized by its long, dark green leaves that mature to lie flat. Its botanical distinction lies in the flat, smooth surfaces of its reproductive cone scales and the lanceolate leaflets arranged oppositely along the rachis. This dioecious plant produces yellow, spindle-shaped male cones and ovoid female cones, with seeds encased in red sarcotesta.
Key Facts
- ›Native to Eswatini.
- ›Possesses dark green leaves that can reach up to 350 cm in length.
- ›Leaflets are lanceolate, approximately 30 cm long, with toothed margins.
- ›Male cones are spindle-shaped, about 60 cm long and 8–10 cm wide.
- ›Female cones are ovoid, around 40 cm long and 12 cm in diameter.
- ›Seeds are 25 mm long and covered with red sarcotesta.
Eswatini
- 2-8 dark green leaves
- Leaves grow up to 350 cm long
- Leaves are upright when young, lying flat when mature
- Leaflets are lanceolate, about 30 cm long
- Leaflet margins are toothed
- Leaflets grow in an opposite pattern along the rachis at an angle of 150-180°
- Petiole has small spines
- Male cones are yellow, spindle-shaped, about 60 cm long and 8–10 cm wide
- Female cones are yellow, ovoid, around 40 cm long and 12 cm in diameter
- Both male and female cones appear in January
- Surfaces of macrosporophylls and microsporophylls are flat, smooth, and glabrous
25 mm Long, Covered With Red Sarcotesta
About Encephalartos aplanatus
Encephalartos aplanatus is a species of cycad indigenous to Eswatini. It is recognized for its distinctive botanical features, including its leaf structure and reproductive cones.
Description and Characteristics
This cycad is characterized by its short stature and robust leaves. It typically bears between two and eight dark green leaves, which can extend up to 350 cm in length. Initially, the leaves grow upright, but as the plant matures, they tend to adopt a horizontal, flat orientation. The leaflets are lanceolate in shape, measuring approximately 30 cm long, and possess toothed margins. These leaflets are arranged in an opposite pattern along the rachis, forming an angle of 150-180 degrees. The petioles, or leaf stalks, are further distinguished by the presence of small spines.
Encephalartos aplanatus is a dioecious species, meaning individual plants are either male or female. The male cones are spindle-shaped, yellow in color, and measure about 60 cm in length with a diameter of 8–10 cm. The female cones are also yellow but are ovoid, reaching around 40 cm in length and 12 cm in diameter. Both types of cones emerge in January, which corresponds to the middle of summer in the Northern Hemisphere, though their appearance in Eswatini would be during the Southern Hemisphere's summer.
A notable characteristic of both the male and female cones is the flat, smooth, and glabrous surface of their respective scales (microsporophylls and macrosporophylls). The seeds of Encephalartos aplanatus are 25 mm long and are enveloped by a striking red sarcotesta.
Source: Wikipedia ↗
Frequently Asked Questions
What are the main physical characteristics of Encephalartos aplanatus?
Encephalartos aplanatus is a short cycad with 2-8 dark green leaves that can grow up to 350 cm long. The leaflets are lanceolate, about 30 cm long, with toothed margins, and arranged oppositely along the rachis. The petioles are adorned with small spines.
What do the reproductive cones of Encephalartos aplanatus look like?
This species is dioecious, meaning it has separate male and female plants. Male cones are yellow, spindle-shaped, measuring approximately 60 cm in length and 8–10 cm in width. Female cones are also yellow but ovoid, around 40 cm long and 12 cm in diameter. Both cone types appear in January.
What is the distribution of Encephalartos aplanatus?
Encephalartos aplanatus is a species of cycad found in Eswatini. It is indigenous to this region.
How are the leaves arranged on Encephalartos aplanatus?
The leaves of Encephalartos aplanatus grow in an opposite pattern along the rachis, at an angle of 150-180°. When young, the leaves stand upright, but they tend to lie flat as they mature.
What are the seeds of Encephalartos aplanatus like?
The seeds of Encephalartos aplanatus are 25 mm long. They are notable for being covered by a red sarcotesta.
Related Cycad species
Encephalartos horridus
Encephalartos horridus, commonly known as the Eastern Cape blue cycad, is a distinctive, low-growing cycad native to the Eastern Cape Province of South Africa. It is recognized for its striking blue-gray, spiny leaves and typically develops a subterranean stem. This species thrives in arid shrublands and rocky ridges, exhibiting a slow growth rate and requiring specific conditions for successful cultivation.
Zamia inermis
Zamia inermis is a critically endangered cycad species native to Actopan, Veracruz, Mexico. It is characterized by its shrub-like growth, with a trunk that can be branched and upright leaves composed of numerous linear-lanceolate leaflets. This species is dioecious and faces significant threats from habitat loss, wildfires, and over-harvesting.
Encephalartos dolomiticus
Encephalartos dolomiticus, commonly known as the Wolkberg cycad, is a critically endangered cycad species native to the Wolkberg region of South Africa. This tree-like cycad typically grows up to 2 meters tall and is characterized by its distinctive bluish leaves forming a crown, with lance-shaped leaflets arranged oppositely along the rachis. It is a dioecious species, producing separate male and female cones.