Isopogon anethifolius
| Isopogon anethifolius | |
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| Flowers emerging from base of cone | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Isopogon |
| Species: | I. anethifolius |
| Binomial name | |
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Isopogon anethifolius Salisb. (Knight) |
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| Range in New South Wales (in green) | |
| Synonyms | |
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Protea anethifolia Salisb. |
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Protea anethifolia Salisb.
Protea acufera Cav.
Isopogon virgulatus Gand.
Isopogon globosus Gand.
Isopogon confertus Gand.
Isopogon eriophorus Gand.
Atylus anethifolius (Salisb.) Kuntze
Isopogon anethifolius, commonly known as narrowleaf- or narrow-leafed drumsticks, is a shrub in the family Proteaceae. The species is found only in coastal areas near Sydney, Australia, and to the immediate west. It occurs naturally in woodland, open forest and heathland on sandstone soils. An upright shrub, it can reach to 3 m (10 ft) in height, with terete leaves that are divided and narrow. The yellow flowers appear from September to December and are prominently displayed. They are followed by round grey cones, which give the plant its common name of drumsticks. The small hairy seeds are found in the old flower parts.
Isopogon anethifolius regenerates after bushfire by resprouting from its woody base, known as a lignotuber, as well as from seed. It was described by Richard Salisbury in 1796, and was first grown in the United Kingdom the same year. One of the easiest members of the genus Isopogon to grow in cultivation, I. anethifolius grows readily in the garden if located in a sunny or part-shaded spot with sandy soil and good drainage.
Isopogon anethifolius is a shrub usually between 1 and 3 m (3 and 10 ft) high with an upright habit (tall and thin with mostly vertical stems). It generally grows taller in more sheltered areas such as woodlands, and shorter in more exposed areas. The stems are reddish in colour, and new growth in winter is tinged with reddish and tan tones. The leaves are terete (round in cross section) and less than 1 mm ( 1⁄25 in) in diameter. They branch once or twice in their 16 cm (6 1⁄4 in) length. The globular yellow flowerheads, known as inflorescences, appear at the ends of branches in spring and early summer (September to December), though occasionally at other times of year. These are up to 4 cm (1 1⁄2 in) in diameter. The individual flowers arise out of the central woody globe in a spiral pattern, and are around 1.2 cm (1⁄2 in) long. They are straight stalkless structures that originate from a scale on the globe, composed of a tubular structure known as the perianth, which envelopes the flower's sexual organs. The perianth splits into four segments, revealing a thin delicate style that is tipped with the stigma. At the ends of the four perianth segments are the male pollen-bearing structures known as anthers. Arranged in a spiral pattern, the flowers open from the outer/bottom of the flowerhead inwards. The egg-shaped grey cones are revealed as the old flower parts fall away, and are up to 2.5 cm (1 in) in diameter. The seed-bearing nuts are small—up to 4 mm (3⁄16 in) across—and lined with hairs. The seed weighs around 4 mg (0.00014 oz).
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Wikipedia