BLUE FLEABANE

Erigeron Acris

(Formerly: Erigeron Acer)
Daisy Family [Asteraceae]  

month8jul month8july month8Aug month8sep month8sept

flower
flower8bicolour		 flower
flower8lilac		 inner
inner8yellow		 morph
morph8actino		 petals
petalsZmany		 stem
stem8square

18th Sept 2008, Rochdale Canal, Castleton, Gtr M/cr. Photo: © RWD
Shortish, up to 60cm tall, little-branched.


25th May 2006, Burscough Bridge Railway Station. Photo: © RWD
Short lilac coloured ray florets, shorter yellow inner disc florets. Un-toothed lanceolate hairy leaves.


25th May 2006, Burscough Bridge Railway Station. Photo: © RWD
Flower never opens flat just like groundsel.


18th Sept 2008, Rochdale Canal, Castleton, Gtr M/cr. Photo: © RWD
Lilac outer ray florets are short with one notch and usually proceed upwards half hiding the shorter inner yellow disc florets. A ring of white feathery hairs, to become the the pappus, separate the two.


9th Sept 2009, Ainsdale Sand Dunes, Sefton Coastal Path, Merseyside. Photo: © RWD
The sepals are hairy, green at the base but becoming purple at the tips, keep close to the flower. The stem tends towards purple, is square, and the branches are few, as are stem leaves.


8th July 2009, Ainsdale Sand Dunes, Sefton Coastal Path, Merseyside. Photo: © RWD
The flowers of an individual plant at various stages of development.


9th Sept 2009, Ainsdale Sand Dunes, Sefton Coastal Path, Merseyside. Photo: © RWD
Hairy sepals, green at the base and reddish-purple at the tip. Upright lilac ray-florets (or 'petals') thin and slightly splayed outwards. Inner pappus developing.


9th Sept 2009, Ainsdale Sand Dunes, Sefton Coastal Path, Merseyside. Photo: © RWD
Plant on mature sand dunes gone to pappus, about to shed seeds on the wing.


9th Sept 2009, Ainsdale Sand Dunes, Sefton Coastal Path, Merseyside. Photo: © RWD
The seed clock head is off white, slightly yellowish.


9th Sept 2009, Ainsdale Sand Dunes, Sefton Coastal Path, Merseyside. Photo: © RWD
The seeds have parachuted away on most of the dead flowers.


18th Sept 2008, Rochdale Canal, Castleton, Gtr M/cr. Photo: © RWD
The stems are square, and in places could be octagonal (or square-chamfered).


7th Aug 2007, Burscough Bridge Railway Station. Photo: © RWD
Stem leaves are hairy all sides and half clasp the stem.

Blue Fleabane can relieve tooth-ache and arthritic pains. It inhabits dry grassy places, stone walls and dunes.

A new diterpene, acetylarabinoside, has been found in Blue Fleabane.

AROMADENDRANE SESQUITERPENES


Blue Fleabane contains derivatives of aromadendrane-type sesquiterpenes, such as 4alpha-10beta-alloaromadendranediol and 4beta-10beta-aromadendranediol. The Aromadendrane skeleton is shown with the three fused rings, one a three, another a five and the third a seven-membered ring bearing a resemblance to the Tigliane Series. Alongside it is one of the Aromadendranes, name unknown, found within Blue Fleabane.

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Distribution
family8Daisy family8dandelion family8Asteracaea
BSBI maps
genus8erigeron
Erigeron

FLEABANE

Erigeron Acris

(Formerly: Erigeron Acer)
Daisy Family [Asteraceae]