Angiosperms (Flowering Plants) • Earth.com

Matchstick banksia

(Banksia cuneata)

galery
en

Description

Banksia cuneata, commonly known as matchstick banksia or Quairading banksia, is an endangered species of flowering plant in the family Proteaceae. Endemic to southwest Western Australia, it belongs to Banksia subg. Isostylis, a sub-genus of three closely related Banksia species with inflorescences or flower clusters that are dome-shaped heads rather than characteristic Banksia flower spikes. A shrub or small tree up to 5 m (16 ft) high, it has prickly foliage and pink and cream flowers. The common name Matchstick Banksia arises from the blooms in late bud, the individual buds of which resemble matchsticks. The species is pollinated by honeyeaters (Meliphagidae). Although B. cuneata was first collected before 1880, it was not until 1981 that Australian botanist Alex George formally described and named the species. There are two genetically distinct population groups, but no recognised varieties. This Banksia is classified as endangered, surviving in fragments of remnant bushland in a region which has been 93% cleared for agriculture. As Banksia cuneata is killed by fire and regenerates from seed, it is highly sensitive to bushfire frequency—fires recurring within four years could wipe out populations of plants not yet mature enough to set seed. Banksia cuneata is rarely cultivated, and its prickly foliage limits its utility in the cut flower industry. Banksia cuneata grows as a shrub or small tree up to 5 m (16 ft) high, without a lignotuber. It has one or more main trunks with smooth grey bark, and many branches. Young stems are covered in coarse hairs, but these are lost as the stems age. The leaves are wedge-shaped with serrated edges, having from one to five teeth along each side. They range from 1 to 4 cm (0.5 to 1.5 in) long and 0.5 to 1.5 cm (0.20 to 0.59 in) wide, on a petiole of 2 to 3 mm. The upper surface is dull green; as with the stems, both leaf surfaces are covered in coarse hairs when young, but these are soon lost. Flowers occur in dome-shaped heads from three to four cm (1.2–1.6 in) in diameter, growing at the ends of branches. They comprise 55 to 65 individual flowers, enclosed at the base by a whorl of short involucral bracts. As with most other Proteaceae, each flower consists of a perianth comprising four united tepals, and a single pistil, the style of which is initially enclosed within the limb of the perianth, but breaks free at anthesis.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Magnoliopsida
Order:Proteales
Family:Proteaceae
Genus:Banksia
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