Chamelaucium uncinatum Schauer

Genus :Chamelaucium Desf.=Decalophium Turcz.

Species

Chamelaucium uncinatum Schauer

• =Chamelaucium affine Meisn.
• =Chamelaucium uncinatum var. leptophyllum Benth.
• ≡Darwinia uncinata (Schauer) F.Muell.

Chamelaucium uncinatum Schauer (gbif.org)

 

Calibrated heat balance stem flow gauges were used to study the daily water use by Geraldton wax (Chamelaucium uncinatum Schauer), a plant endemic to the coastal sand plains north of Perth, Western Australia. Sap flow was recorded for the trunk, primary and secondary branches, and partially shaded lower east and sun‐lit upper west branches in order to assess the influence of climatic variables, stem development, and exposure. Irradiance and leaf area strongly influenced diurnal sap flow. Sap flow in primary and secondary branches was comparable when expressed on a unit leaf area basis. Defoliation reduced water use of the secondary branch. Shedding of leaves under water stress, a common phenomenon in Geraldton wax, probably has similar effects. The level of internal shading influenced water use in the crown (1.2 and 1.5 kg/day per m2 leaf area for branches with east and west exposure respectively). The difference in water use was prominent during the afternoon when the east branch was shaded. The results demonstrate the value of the heat balance stem flow gauges in measuring shrub water use directly.

Water use by Geraldton wax (Chamelaucium uncinatum Schauer) as measured by heat balance stem flow gauges: New Zealand Journal of Crop and Horticultural Science: Vol 22, No 3 (tandfonline.com)