GUERNSEY FLEABANE

Erigeron sumatrensis

(Formerly: Conyza sumatrensis)
Daisy & Dandelion Family [Asteraceae]

month8jun month8june month8jul month8july month8aug month8sep month8sept

status
statusZneophyte
flower
flower8yellow
petals
petalsZ0
stem
stem8round
stem
stem8ribbed
sex
sexZbisexual
sex
sexZfemale

31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
It grows straight up to 1m with the maximum height being 2m. The tallest of these specimens are maybe about 1.5m high with some less than half that. It is similar to Argentine Fleabane, but that grows to just 60cm and is said to be 'greyish-green rather than dull-green' (although quite what the distinction between those two colours are is a mystery to your Author).


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
Here is a more convincing 'greyish-green' but your Author thinks the distinction may be more influenced by the presence or absense of sunshine! The Sun is behind clouds in this photo, whereas the previous photo is in the sun.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
The pappus (seed head) on the right is yellowish-white in Guernsey Fleabane (greyish-white on Argentine Fleabane).


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
It is a dull-green in colour.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
Here the dull-green colour is more in evidence.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
When it is in fruit (too early for that in these photos) the flowerheads will mostly be between 5 and 8mm wide.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
Some of the yellowish disc florets have not even opened yet.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
The phyllaries around the outside of the flower.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
The capitula (consisting of phyllaries) is hairy (but they are not stiff hairs as in Bilbao's Fleabane).


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
As yet unopened yellowish disc-florets within the flowerhead.


31st Aug 2018, The Freshfield beer garden, Sefton Coast. Photo: © RWD
The disc florets are 5-lobed on all three of these look-e-like=ees: Guernsey Fleabane as well as Bilbao's Fleabane and Argentine Fleabane.


Not to be semantically confused with : Guernsey Pigweed (Amaranthus blitum), Guernsey Centaury (Exaculum pusillum), Guernsey Lily (Nerine sarniensis), () [plants with similar names belonging to differing families]

Hybridizes with :

  • Blue Fleabane (Erigeron acris) which has been found in Cambridgeshire, West Suffolk and East Sussex.
Lookee-Likees : Argentine Fleabane (Erigeron bonariensis) but that is potentially shorter growing to only 60cm high (as opposed to 1m high, max 2m for Guernsey Fleabane). There are numerous other slight differences too.


  Erigeron sumatrensis  ⇐ Global Aspect ⇒ Asteraceae  

Distribution
 family8Daisy & Dandelion family8Asteraceae
 BSBI maps
genus8Erigeron
Erigeron
(Fleabanes)

GUERNSEY FLEABANE

Erigeron sumatrensis

(Formerly: Conyza sumatrensis)
Daisy & Dandelion Family [Asteraceae]