Bolivia Homoranthus - profile

Indicative distribution


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Key:
known
predicted
The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Homoranthus croftianus
Conservation status in NSW: Endangered
Commonwealth status: Not listed
Gazetted date: 23 Jul 1999
Profile last updated: 01 Dec 2017

Description

Bolivia Homoranthus is an upright shrub 2 m tall and 1.5 m wide with thick, dark to pale green leaves. The leaves are paired on the stem, with successive pairs at right angles to each other, and 2.5 - 8 mm long, 0.5 - 1 mm wide and thick with a gradually tapered tip. The green to cream flowers are about 5 mm long and are borne solitary (ie not grouped together) between stem and leaf. Flowers have been seen in all months (the original description identified winter as the flowering season, while a later document named Spring-Summer as the primary period). This species can be distinguished from other Homoranthus species in the area by its upright form and distinctive green foliage.

Distribution

Restricted to Bolivia Hill, north of Deepwater on the New England Tablelands of NSW.

Habitat and ecology

  • Individual plants flower sporadically throughout the year, with September to January most common.
  • Homoranthus croftianus is associated with isolated granitic outcrops at about 1000 m altitude, growing within crevices of bare rocky slopes and in shallow acidic soil above and below sheet rock.
  • Associated species include Callitris endlicheri, Eucalyptus prava, Eucalyptus dealbata, Leucopogon neoanglicus, Micromyrtus sessilis, Kunzea bracteolata, Boronia anethifolia, Leptospermum novae-angliae, Acacia viscidula, Acacia pycnostachya and Cryptandra lanosiflora.
  • Likely to be highly fire-sensitive and intolerant to frequent fire disturbance. Bare rock near most populations probably hinders wildfire from reaching them.
  • Initially thought to comprise less than 500 individual plants, subsequent census efforts and the discovery of three new sub-populations have more than doubled that number. Recruitment is limited but consistent at all sites.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Threats

Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
NandewarNandewar Northern Complex Predicted within 20k of Bolivia Hill
New England TablelandsBinghi Plateau Predicted within 20k of Bolivia Hill
New England TablelandsDeepwater Downs Predicted within 20k of Bolivia Hill
New England TablelandsNortheast Forest Lands Predicted within 20k of Bolivia Hill
New England TablelandsTenterfield Plateau Known within 20k of Bolivia Hill