Daisy & Dandelion Family [Asteraceae] |
status
flower
inner
morph
petals
stem
smell
faint
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
Short to medium height, less than 80cm tall. |
23rd Aug 2015, bus stop, East Lancs Rd, Worsley, M/cr. | Photo: © RWD |
A young plant not yet fruiting as is the specimen above. |
23rd Aug 2015, bus stop, East Lancs Rd, Worsley, M/cr. | Photo: © RWD |
Amongst many other plants in recently disturbed soil. The leaves are wide, long-oval but with a pointed tip and attach broadly without stalks to the stems. |
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
Has brilliant pale-yellow to brilliant orange petals, about 4-7cm across and usually slightly curved downwards. Often double-flowered (flore pleno). |
23rd Aug 2015, bus stop, East Lancs Rd, Worsley, M/cr. | Photo: © RWD |
Your Author is not quite sure what those long curled things are in the centre (anthers?). |
23rd Aug 2015, bus stop, East Lancs Rd, Worsley, M/cr. | Photo: © RWD |
There are many sepal teeth cupping the flower below. |
23rd Aug 2015, bus stop, East Lancs Rd, Worsley, M/cr. | Photo: © RWD |
A lone, long stubilly-hairy bract comes up from the stem to play with the stubilly-hairy sepal teeth (which are in two layers, an inner and outer layer). |
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
The centre is a darker shade of orange/brown. |
20th Sept 2016, Wigan rail station, Lancs. | Photo: © RWD |
An as-yet unopemed flower. The sepals here have the short stubby hairs (some of which appear to have a gland at their base) and encircled by much thinner threads like a spiders web. These might have been created by a spider, but your Author suspects that the thin threads appeared when the sticky sepal teeth parted, the sticky substance probably coming from the glands at the base of the short hairs. Notice how these thin hairs criss-cross each other. |
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
The achenes (seeds) are characteristically in-curved and look like green or brownish-purple maggots. |
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
Several in-curving layers of maggot-like seeds. Dead disc florets still in the centre. |
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
Phyllaries visibly from above too. |
20th Sept 2016, Wigan rail station, Lancs. | Photo: © RWD |
The developing fruits, still green. |
20th Sept 2016, Wigan rail station, Lancs. | Photo: © RWD |
The browning fruits. |
24th Aug 2014, Wigan Wallgate rly stn, Lancs. | Photo: © RWD |
Both stems and leaves hairy. The leaves are spoon-shaped, and broadest near the top. |
PROLIFERATION in POT MARIGOLD |
Mutations Menu |
29th March 2012, a garden. | Photo: © Dave Symes |
Some wild flowers, such as Wild Basil, have tiered flower heads, but they usually belong to the Dead-nettle Family (Lamiaceae) and not to the Dandelion & Daisy Family (Asteraceae) as does Pot Marigold (Calendula arvensis), so tiered flowers are not an un-natural phenomenon. But in the case of Pot Marigold, tiered flowers are certainly not the norm, but they are by no means un-known. Here the first flower has matured and set seed only to produce a satellite flower from the head, which then sets seed only to produce yet a third satellite. Mutations like these can give clues to the growth process, especially when it goes awry, as here. This is technically called proliferation. |
29th March 2012, a garden. | Photo: © Dave Symes |
The mutation is possibly caused by a viral infection that has probably altered the expression of some aspect of the homeobox genes, which form the basis of the master-plan of growth: where shoots start, where leaves are, the shape and form of the flower-head, things like these. It is an example of Homeosis, where one plant part is mutated into a differing plant part. |
Not to be confused with : Bur-marigolds such as Nodding Bur-Marigold (Bidens cernua) or London Bur-Marigold (Bidens connata) or with Corn Marigold (Glebionis segetum) which have similar names and also belong in the same Asteraceae family, but which are all yellow. Uniquely identifiable characteristics Distinguishing Feature : No relation to : Marsh Marigold (Caltha palustris) [a plant with similar name belonging to the Buttercup Family (Ranunculaceae)]. Grown in gardens it is not a plant native to the UK. Occurs as both the single flowered and double-flowered versions and can escape, although whether or not they were planted or thrown out into the wild is debatable, but once there, they do self-seed themselves and spread laterally. An annual that sometimes behaves as a perennial, sometimes over-wintering particularly in the warmer South or West of England, although it cannot tolerate conditions that are too hot. The petals are edible and are used as a substitute for saffron in cooking rice, making soups or a tea infusion and taste almost of hops. Or used as an edible decoration with rose petals or borage flowers on cakes, salads, desserts or added in the making of cheese or butter. The flower has a faint aromatic smell The leaves too are edible, but not very palatable.
The petals will also yield a dye for fabrics such as wool, cotton, linen, silk and hemp which can be made yellow, orange or brown depending upon the mordant used. The Vikings used it to dye their hair fair. The petals (and pollen) contain the orange/yellow carotenoids Both leaves and stems also contain other carotenoids: Zeaxanthin at 5% and Lutein at 80%.
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Calendula | officinalis | ⇐ Global Aspect ⇒ | Asteraceae |
Calendula (Marigolds) |
Daisy & Dandelion Family [Asteraceae] |