| Astrotricha pterocarpa | |
|---|---|
 | |
| On Walsh's Pyramid near Cairns, Queensland | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Apiales |
| Family: | Araliaceae |
| Genus: | Astrotricha |
| Species: | A. pterocarpa |
| Binomial name | |
| Astrotricha pterocarpa | |
Astrotricha pterocarpa is a plant in the ivy family Araliaceae found only in tropical Queensland, Australia.
Astrotricha pterocarpa is a single-stemmed shrub growing up to 7 m tall, with large spirally arranged leaves on the upper stem. The lower parts of the stem are glabrous (hairless) and marked by conspicuous leaf scars—the upper parts are clothed in a brown indumentum. [4]
The leaves are simple and without stipules. They have a blunt obtuse base and a pointed tip, and are held on petioles that are between 5.5 and 12.5 cm long. They measure up to 27 cm long by 4 cm wide, are dark green above but covered in a dense brown indumentum on the underside. [4] [5]
The inflorescence is a terminal panicle composed of umbels – overall it may measure up to 100 cm long by 50 cm wide. The umbels each have between 10 and 15 cream or pale green bisexual flowers. There are five lobes on the calyx , five petals and five stamens. The ovary is inferior and there are two recurved styles. The fruit is a schizocarp about 12 mm long and 7 mm wide. [4] [5]
This was first described by the British botanist George Bentham, and published in volume 3 of his book Flora Australiensis in 1867. The description was based on material collected from Fitzroy Island. [5]
The species epithet pterocarpa means "winged fruit", a reference to the papery wing that develop on the seeds. [4]
This species grows in open forest from north of Cooktown southwards to Pentland (about 348 km west of Airlie Beach). It grows on shallow sandy soils. [4]
This species is listed as least concern under the Queensland Government's Nature Conservation Act. [1] As of 4 June 2024 [update] , it has not been assessed by the International Union for Conservation of Nature (IUCN).
Pandanus spiralis is a small tree in the family Pandanaceae native to northern Australia. It is commonly called pandanus, spring pandanus, screw palm or screw pine, although it is neither a palm nor a pine.
Astrotricha is a genus of shrubs in the ivy family Araliaceae endemic to Australia. It contains about 20 described species and a number of undescribed ones, and the genus is mostly confined to Victoria, New South Wales and Queensland with one species found in Western Australia.
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Goodenia benthamiana, commonly known as small-leaf goodenia, is a species of flowering plant in the family Goodeniaceae and is endemic to south-eastern Australia. It is an aromatic undershrub with stem-clasping, egg-shaped to elliptic leaves with toothed edges, and yellow flowers arranged singly or in groups of up to three in leaf axils, with leaf-like bracteoles at the base.
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Cleistanthus apodus, commonly known as the weeping Cleistanthus, is a tree in the family Phyllanthaceae native to New Guinea and northeast Queensland. It was first described in 1873 by the English botanist George Bentham in his seven-volume book Flora Australiensis.
Heptapleurum ellipticum, commonly known in Australia as the climbing umbrella tree, is a plant in the family Araliaceae native to the Indian subcontinent, Indochina, Malesia, Papuasia and Australia.
Platysace filiformis is a species of flowering plant in the family Apiaceae and is endemic to the south-west of Western Australia. It is an erect or sprawling, perennial herb or shrub with flat, winged stems with few leaves and white or cream-coloured flowers arranged in compound umbels.
Diploglottis bernieana, commonly known as Bernie's tamarind or large leaf tamarind, is a plant in the maple and lychee family Sapindaceae. It was first described in 1987 by the Australian botanist Sally T. Reynolds and is found only the Wet Tropics region of northeastern Queensland, Australia.
Aglaia ferruginea, commonly known as rusty boodyarra or rusty Aglaia, is a plant in the mahogany family Meliaceae that is native to northern Queensland, Australia. The name A. tomentosa has been misapplied to the species in the past.
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