Leptospermum 'Wiri Donna' 1 (cult) E of Walpole, Western Australia 110930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 'Wiri Donna' 2 (cult) E of Walpole, Western Australia 110930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 1 Genting Highlands, Malaysia 860315 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 1a Auckland Botanical Garden 151103 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 1b Auckland Botanical Garden 151103 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 1c Auckland Botanical Garden 151103 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 1d Auckland Botanical Garden 151103 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 3a Bergianska 061013 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 3b Bergianska 061013 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 4a Hassel Nat Park E of Albany, Western Australia 111002 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum 4b Hassel Nat Park E of Albany, Western Australia 111002 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 10 East Mount Barren, W of Hopetoun, Western Australia 111004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 11 East Mount Barren, W of Hopetoun, Western Australia 111004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 16 W of Pemberton, Western Australia 110928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 8 East Mount Barren, W of Hopetoun, Western Australia 111004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 9 East Mount Barren, W of Hopetoun, Western Australia 111004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf oligandrum 1 E of Walpole, Western Australia 110930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf oligandrum 2 E of Walpole, Western Australia 110930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum erubescens 1 Narrogin Foxes Lair Nature Park, Western Australia 111006 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum erubescens 2 Narrogin Foxes Lair Nature Park, Western Australia 111006 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum erubescens 3 Narrogin Foxes Lair Nature Park, Western Australia 111006 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 1 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 10 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 11 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 12 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 13 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 15 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 16 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 3 Hottentots Holland, Western Cape, South Africa 100928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 6 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 7 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 8 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 9 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum scoparium 'Pink Cascade' 1 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum scoparium 'Pink Cascade' 2 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum scoparium 'Pink Cascade' 3 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 1 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 2 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 3 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 4 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 6 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum squarrosum 1 Bergianska, Stockholm 020416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum squarrosum 2 Bergianska, Stockholm 020416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 1 Bluff Knoll, Stirling Range, Western Australia 111001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 12 W of Pemberton, Western Australia 110928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 13 W of Pemberton, Western Australia 110928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 14 W of Pemberton, Western Australia 110928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 15 W of Pemberton, Western Australia 110928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 2 Bluff Knoll, Stirling Range, Western Australia 111001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 3 Bluff Knoll, Stirling Range, Western Australia 111001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 4 Bluff Knoll, Stirling Range, Western Australia 111001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 5 Bluff Knoll, Stirling Range, Western Australia 111001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 6 East Mount Barren, W of Hopetoun, Western Australia 111004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum cf erubescens 7 East Mount Barren, W of Hopetoun, Western Australia 111004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum erubescens 4 Western Flora Caravan Park, Western Flora 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 14 Bremer Bay, Western Australia 111003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 2 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 4 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum laevigatum 5 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum rotundifolium 1 Wellington Botanical Garden NZ 151114 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum rotundifolium 2 Wellington Botanical Garden NZ 151114 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum rotundifolium 3 Wellington Botanical Garden NZ 151114 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 5 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Leptospermum spinescens 7 Western Flora, Western Australia 110924 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).