Atherosperma moschatum subsp. integrifolium
| Southern sassafrass – narrow leaf form | |
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| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Laurales |
| Family: | Atherospermataceae |
| Genus: | Atherosperma |
| Species: | A. moschatum |
| Subspecies: | A. m. subsp. integrifolium |
| Trinomial name | |
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Atherosperma moschatum subsp. integrifolium (A.Cunn. ex Tul.) Schodde |
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| Synonyms | |
Atherosperma moschatum subsp. integrifolium is a small evergreen tree native to the temperate rainforests of central and northern New South Wales, Australia. In 2006, it was recognised as a separate subspecies by Richard Schodde. Common names include "southern sassafras - narrow leaf form" and "blackheart sassafras".
It is found in four areas: Monga National Park, Blue Mountains, Barrington Tops, and at Mount Grundy west of Port Macquarie, by streams such as the Tia River. It may also be undiscovered in the Illawarra to the south, and New England National Park to the north. The original specimen was collected in the Blue Mountains.
Genetic studies of the subspecies, along with the more widespread southerly distributed subspecies, Atherosperma moschatum subsp. moschatum, have shown that populations of the subspecies A. m. integrifolium are the most strongly diverged of all populations within the range of the species at both isozymes and chloroplast DNA. These results are consistent with long-term isolation of these populations through at least the last glacial period.
Its habitat is cool, moist, protected areas, ranging from 650 to 1540 m above sea level, near streams. Almost always it is seen growing with the black olive berry. Often found on the richer volcanic soils, it also grows in sandstone slot canyons where it may be in a dwarf form. An uncommon or rare plant, it may be seen at the Mount Tomah Botanic Garden west of Sydney, or on the Neates Glen walk at Blackheath.
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Wikipedia