From: Hannon <othonna at gmail.com>
on 2011.11.18 at 06:16:17
I would not say truly blue flowers are generally "rare" but a majority of horticulturally well-known, conspicuous groups seem to lack them entirely, such as roses, begonias, day lilies, zinnias, cannas, etc. I think this heightens the impression that blue is a scarce pigment in flowers.=A0
I'll add a few more that strike me as uber blue: Meconopsis betonicifolia, Anagallis monelli, Clitoria ternatea, Ceratostigma, Cynoglossum, Zephyra. Maybe Hydrangea, too?
Dylan
On 17 November 2011 20:25, Peter Boyce <phymatarum@googlemail.com> wrote:
There are truly blue species in the Campanulaceae, and of course the many gentians are also truly blue; other familes are spiderwort family (Commelinaceae), and the extraordinary genus Tecophilia. Even the orchids manage it with the lieks of Herschelia graminifolia and at least two Thelymitra (T. ixioides & T. macrophylla).
=A0 PeterHerschelia graminifoliaHerschelia graminifolia
=A0 =A0 Also, it is important to note that "true blue" is rare throughout the plant kingdom.=A0 There are a few taxa with genuinely blue flowers, but the majority of "blue" flowers have more or less purplish or lavender color to them.=A0 Blue pansies, blue cornflowers, and blue asters come to mind.
Jason Hernandez
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