Cycas platyphylla
Sparse Eucalyptus savanna on skeletal soils over outcrops of rhyolite or basalt.·Erect or decumbent stems·Not specified in text
Cycas platyphylla is a species of cycad native to Queensland, Australia, thriving in sparse Eucalyptus savanna environments. It is characterized by its erect or decumbent stems, pinnate leaves that are initially glaucous blue, and cones with seeds that develop an intensely glaucous sarcotesta. This species exhibits fire tolerance and is often found growing abundantly in cool habitats.
Key Facts
- ›Native to Queensland, Australia.
- ›Grows in sparse Eucalyptus savanna on skeletal soils.
- ›Stems are erect or decumbent, typically under 1 meter tall.
- ›Leaves are pinnate, 60–100 cm long, with new fronds being glaucous blue.
- ›Possesses fire tolerance.
- ›Seeds have an intensely glaucous sarcotesta.
Queensland, Australia
- Erect or decumbent
- Growing to 1.5 m tall, but most often less than a metre
Pinnate, Keeled, 60–100 cm long, New fronds are glaucous blue at first, Becoming dark yellow-green, Moderately glossy above
- Megasporophylls are thickly covered in orange indumentum
- Developing seeds have an intensely glaucous sarcotesta
Intensely Glaucous Sarcotesta
About Cycas platyphylla
Cycas platyphylla is a species of cycad native to the Queensland region of Australia. It is recognized for its distinctive botanical features and its ability to thrive in specific savanna environments.
Habitat and Distribution
This cycad's primary distribution is found in the sparse Eucalyptus savanna west of the Atherton Tableland in north-east Queensland. It prefers to grow on skeletal soils that lie over outcrops of rhyolite or basalt. Cycas platyphylla is known to grow abundantly in cool habitats and exhibits a notable tolerance to fire.
Botanical Characteristics
The stems of Cycas platyphylla are typically erect or decumbent, reaching heights of up to 1.5 meters, though most specimens remain under one meter. Its leaves are pinnate and keeled, measuring between 60 and 100 centimeters in length. Initially, the new fronds present a glaucous blue hue before maturing into a dark yellow-green with a moderately glossy upper surface. The reproductive structures, specifically the megasporophylls, are densely covered in orange indumentum, and the seeds develop a strikingly glaucous sarcotesta.
Source: Wikipedia ↗
Frequently Asked Questions
Where is Cycas platyphylla found naturally?
Cycas platyphylla is indigenous to Queensland, Australia. Its primary distribution is west of the Atherton Tableland in north-east Queensland.
What kind of habitat does Cycas platyphylla prefer?
This cycad thrives in sparse Eucalyptus savanna environments. It grows on skeletal soils derived from rhyolite or basalt outcrops and is often found in cool habitats.
What are the characteristics of Cycas platyphylla leaves?
The leaves of Cycas platyphylla are pinnate and keeled, typically measuring 60–100 cm in length. New fronds emerge with a glaucous blue color before maturing to a dark yellow-green, with a moderately glossy upper surface.
How large do the stems of Cycas platyphylla grow?
The stems of Cycas platyphylla are either erect or decumbent. They can grow up to 1.5 meters tall, but most specimens are usually less than a meter in height.
Is Cycas platyphylla adapted to fire?
Yes, Cycas platyphylla is fire tolerant. This adaptation allows it to survive and grow abundantly in its natural habitat, which can be subject to fires.
Related Cycad species
Encephalartos trispinosus
Encephalartos trispinosus is a species of cycad native to the Eastern Cape Province of South Africa. It features an upright stem and pinnate leaves that can range in color from gray-greenish to blue, with distinctive spiny leaflets. This dioecious species produces separate male and female cones, with seeds covered in a sarcotesta.
Encephalartos ghellinckii
Encephalartos ghellinckii, commonly known as the Drakensberg cycad, is an evergreen species endemic to South Africa, primarily found in the Natal Drakensberg region. It thrives in diverse habitats from foothills to high elevations, including stream banks, steep grassy slopes, and sandstone outcrops, demonstrating remarkable resistance to veldfires, snow, and frost. Distinctive features include its olive to yellow-green fronds, narrow leaflets with revolute margins, and lemon-colored, woolly cones.
Macrozamia heteromera
Macrozamia heteromera is a species of cycad endemic to New South Wales, Australia, typically found in dry sclerophyll woodlands. This low-trunked cycad is characterized by its mid-green, narrow, and often divided pinnae, a feature that distinguishes it within the Macrozamia genus. While its seeds and leaves are toxic, traditional Indigenous Australian practices demonstrate that proper preparation can render the seeds edible.