Plants of South Eastern New South Wales
Oenothera lindheimeri
Common name
Clockweed, Butterfly Bush, Butterfly Flower, White Butterfly
Family
Onagraceae
Where found
Garden escape. Disturbed sites and roadsides. Mainly Sydney and Canberra. Occasionally elsewhere.
Notes
Perennial herb to about 1.5 m high. Stems numerous, hairy with coarse curved hairs. Leaves basal and alternating up the stems. Basal leaves 4–15 cm long, soon withering. Stem leaves 0.5–9 cm long, 5–15 mm wide, tips pointed, margins minutely and often sparsely toothed, wavy. Flowers white, becoming yellow or pink to red as they age, with 4 petals each 8–15 mm long, opening near sunrise. Sepals pink. Flowers in simple or branched spikes to about 80 cm long, 20–30 mm wide. Flowering: summer and autumn.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Oenothera~lindheimeri (accessed 23 January, 2021)
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