Plants of South Eastern New South Wales

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Hydrangea macrophylla

Common name

Hydrangea, Bigleaf Hydrangea

Family

Hydrangeaceae

Where found

Cultivated plant, rarely naturalised. Mostly Sydney area, Blue Mountains, and north. Occasionally elsewhere.

Notes

Introduced deciduous shrub to 3 m high. Hairless. Leaves opposite each other, 7.5–19 cm long, 40–130 mm wide, margins toothed. Male and female flowers on the same plant. Flowers with 5 petals, falling when the flowers open, and 4-5 sepals initially 0.5–1 mm long. Male flowers white, blue, purple or pink, the sepals united at the base, enlarging to 10-30 mm long. Bisexual flowers inconspicuous. Flowers in dense clusters. Flowers spring–autumn.

VICFLORA description:  https://vicflora.rbg.vic.gov.au/flora/taxon/0d1fc139-cfd1-4cc0-9686-b903e2d86d73 (accessed 22 February 2021)