Plants of South Eastern New South Wales

Eucalyptus dalrympleana

Flowers, buds, and leaves (subsp. dalrympleana).  Australian Plant Image Index, photographer Murray Fagg, Namagi National Park, ACT

Juvenile foliage. Photographer Jackie Miles

Bark. Photographer Malcolm Storey, Kew Gardens, England

Tree. Australian Plant Image Index, photographer Murray Fagg, east of Tumut

Line drawings. d. juvenile (right) and adult (left) leaves; buds and gumnuts. KR Thiele, Australian National Herbarium, © 2021 Royal Botanic Gardens Board, Melbourne, Vic

Common name

Mountain gum, Mountain white gum, White gum, Broad-leaved ribbon gum

Family

Myrtaceae

Where found

Forest and grassy woodland at higher altitudes. 

subsp. dalrympleana:  Kosciuszko National Park, the mountains to the north, ACT, tablelands, and the ranges. Western Slopes south of the Hume Highway.

subsp. heptantha:  Kosciuszko National Park. This subspecies occurs naturally on the northern tablelands of NSW, extending into southern Qld.

Notes

Tree to 60 m tall.  Bark smooth throughout, or with a short stocking of rough, fibrous-flaky, greyish, bark.  Smooth bark shedding in long ribbons, sometimes powdery, sometimes with horizontal black scars.  Branchlets non-glaucous.  Growing tips more or less glaucous.  Juvenile stems stems round or square in cross section. Juvenile leaves opposite each other for many pairs, 2.5-7 cm long, 25-70 mm wide, glossy, green to grey-green.  Adult leaves alternating up the stems, 7–24 cm long, 10-40 mm wide, glossy or dull, green.  Flowers white, with 0 petals.  Flower clusters 3- or 7- flowered.  Mature flower buds 5–10 mm long, caps as long as or shorter than the base.  Flowering: most of the year.  Gumnuts 5-9 mm in diameter. Gumnuts that have dropped their seed have protruding or slightly protruding  valves.   

PlantNET description of species and key to subspecies:   http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Eucalyptus~dalrympleana   (accessed 22 January, 2021)

subsp. dalrympleana:  Flower clusters 3-flowered.

Hybridises with Eucalyptus viminalis subsp. viminalis.

All native plants on unleased land in the ACT are protected.

EUCLID description:  https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_dalrympleana_subsp._dalrympleana.htm  (accessed 22 January, 2021)

subsp. heptantha:  Flower clusters mostly 7-flowered.

Introduced to the area covered by this key.

EUCLID description:  https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_dalrympleana_subsp._heptantha.htm  (accessed 22 January, 2021)