Australian Cultivar Registration Authority

Description:
Photographer:

Description: Crowea exalata 'White Star', Taken: 24 January 2019, [HERBARIUM SPECIMEN] Copyright : Centre for Australian National Biodiversity Research (CANBR) holds copyright
Photographer: Palmer, R.

Crowea exalata 'White Star'

File Number

531

ACRA Field Book Number

468

Registration Date

15/10/1992

Application Received

11/07/1990

Family

Rutaceae

Cultivar Name

Crowea exalata 'White Star'

Origin

The origin of this form of Crowea exalata is unknown. The name was chosen because of the white star-like flowers. The cultivar was first received by the Authority on 12 July 1990.

Characteristics

The habit is undefined. Branchlets terete and scarcely angled. Leaves alternate, narrow oblong-spathulate and narowing gradually towards the base, 8-15mm long and 1.5-3mm wide on slender petioles ca. 1-2mm long, surface smooth, secondary nerves obscure. Central nerve usually raised below and margins of leaves slightly recurved. Flowers star-like, solitary, axillary or terminal on very short axillary shoots, 15-18mm across. Sepals 5, free, broadly ovate, ca. 1mm long, imbricate and reflexed. Petals 5, free, overlapping, broadly ovate 8-9mm long, smooth but with very fine longitudinal striations. Anthers reported to be yellow. Flowering spring and summer. Diagnosis: Characterised by the "star-like" flowers. It differs from the typical Crowea exalata in the smaller white rather than pale mauve or pink flowers, narrower and much shorter leaves.

Cultivation

Will tolerate mild frosts but it requires good drainage. It makes an ideal specimen when it is tip pruned and, in addition, it is suitable for cut flowers.

Publication

"Australian Horticulture" (July 1987, p49) has ashort description accompanied by a black and white illustration.

Colour Coding

RHS Colour Chart 1966Petals - White Group 155A

Propagation

Cuttings from semi-firm new growth

Applicant Name

-

Uses

As part of a mass planting or mixed in a shrubbery, or as a feature plant.

Availability

Specialist native plant nurseries

ANBG Accession Numbers

ACC531; ACRA468; CBG9006474.

NSL ID

-