Weed Identification

Australia > > Cotoneaster

Cotoneaster

Cotoneaster glaucophyllus

Family: Malaceae (often included in Rosaceae).

Form: Shrub

Origin: Native of China.

Flowers/Seedhead: Flowers: In white clusters. Each flower about 8 mm wide, 5-petalled. Flower stalk densely hairy. Flowers spring and summer.

Description: Evergreen shrub to 4 m high. Leaves elliptic to ovate 1.54 cm wide; leaf stalk 0.71.2 cm long. False fleshy fruit (pome) 610 mm long, almost globe-shaped. Seeds yellowish, flattened.

Distinguishing features: Distinguished by leaves 38 cm long with upper surface hairless and lower surface covered with dense intertwined hairs (woolly) when young but becoming hairless with age. Pome ripening red with 2 seeds.

Dispersal: Spread by birds. Also by fruit washed along watercourses.

Confused With: Cotoneaster lacteus, but Cotoneaster lacteus has leaves with distinctly indented veins on the upper leaf surface and a lower surface that remains hairy with age.


White flowers & young leaves with
white woolly lower surface
photo J.R. Hosking

Notes: Common ornamental. Widely naturalised on the fringes of urban bushland and roadsides near plantings. At least nine species of Cotoneaster have naturalised in Australia.

References:

    Flora of NSW G. Harden (ed), Vol. 1, 1990, page 544. Flora of Victoria. N. Walsh and T Entwisle (eds), Vol. 3, 1996, page 578.

Web References: Search Australian web sites for further information on this weed.


Ripe fruit & leaves
photo J.R. Hosking

Seedlings
photo J.R. Hosking

This weed has been included in the WEEDeck field guide as card S01.
More information about WEEDeck is available from Sainty & Associates Pty. Ltd.

It has also been included in the 'Jumping the Garden Fence' report (WWF-Australia PDF - 1.19mb) which examines the impact of invasive garden plants on Australian agricultural land and natural ecosystems.

 

Australia > > Cotoneaster

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