Angophora costata subsp. euryphylla facts for kids
Quick facts for kids Angophora costata subsp. euryphylla |
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Scientific classification  |
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Angophora |
| Species: | |
| Subspecies: |
A. c. subsp. euryphylla
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| Trinomial name | |
| Angophora costata subsp. euryphylla L.A.S.Johnson ex G.J.Leach
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| Synonyms | |
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Angophora costata subsp. euryphylla is a type of medium-sized to large tree. It is only found in a small area of New South Wales, Australia. This tree has smooth bark, long, thin adult leaves, and white or creamy white flowers. Its fruit looks like a cylinder or barrel. This subspecies is similar to Angophora costata subsp. costata, but it has wider leaves and bigger fruit.
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What Does This Tree Look Like?
Angophora costata subsp. euryphylla is a tree that can grow up to 25 meters (about 82 feet) tall. It has a special woody swelling at its base called a lignotuber. This helps the tree regrow if it gets damaged, like by fire.
Its bark is smooth and can be pinkish to orange. Over time, it changes to a grey color.
Leaves and Flowers
Young plants and new shoots (called coppice regrowth) have leaves that sit directly on the stem. These leaves are egg-shaped, about 60-130 mm (2.4-5.1 inches) long and 40-55 mm (1.6-2.2 inches) wide. They grow in pairs opposite each other.
Adult leaves also grow in opposite pairs. They are shiny green on top and paler underneath. These leaves are shaped like a spear or are slightly curved. They measure about 100-210 mm (3.9-8.3 inches) long and 20-50 mm (0.8-2.0 inches) wide. Each leaf has a stalk, called a petiole, which is about 10-25 mm (0.4-1.0 inches) long.
The tree's flower buds grow in groups of three at the ends of branches. These groups are on a main stalk, called a peduncle, which is about 17-25 mm (0.7-1.0 inches) long. Each individual flower bud sits on a smaller stalk, called a pedicel, about 8-15 mm (0.3-0.6 inches) long.
Mature flower buds are round, about 6-10 mm (0.2-0.4 inches) long and 6-11 mm (0.2-0.4 inches) wide. The base of the flower, called the floral cup, is hairy and has ridges. The small leaf-like parts that protect the bud, called sepals, are up to 3 mm (0.1 inches) long. The petals are white with a green line down the middle. They are about 6-10 mm (0.2-0.4 inches) long and 6-11 mm (0.2-0.4 inches) wide. This tree usually flowers in November.
Fruit
After flowering, the tree produces fruit. The fruit is a hard, dry case called a capsule. It is shaped like a cylinder or a barrel, about 14-20 mm (0.6-0.8 inches) long and 12-20 mm (0.5-0.8 inches) wide. Each fruit is on a pedicel (stalk) about 7-17 mm (0.3-0.7 inches) long.
How Was This Tree Named?
The scientific name Metrosideros costata was first given to a similar plant in 1788 by a scientist named Joseph Gaertner. Later, in 1916, James Britten changed the name to Angophora costata.
In 1986, another scientist, Gregory John Leach, described three different types, or subspecies, of Angophora costata. One of these was subspecies euryphylla. The first samples of this tree, called type specimens, were collected near a place called Putty in 1971.
The name euryphylla comes from ancient Greek words. "Eury" means "broad," and "phylla" means "leaf." This name describes the tree's broad leaves.
Where Does This Tree Grow?
This special type of eucalypt tree only grows in certain places. You can find it on rocky sandstone areas in open forests. These areas are near Putty, in the Howes Valley, and in the Judge Dowling Range in New South Wales.
