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Mock-orange Family [Hydrangeaceae] |
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15th June 2010, High Newton, Cumbria. | Photo: © RWD |
More likely to be found climbing up a house than growing wild. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
But here is one apparently growing wild up a tree, although in reality it is probably a cast-out from a garden. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Like Lacecap Hydrangeas, the flowers grow in 'umbels' with petal-less fertile flowers in the centre surrounded by sterile flowers with 'petals' on the outside. |
4th June 2011, Upper Padley, Grindleford, Derbys. | Photo: © RWD |
The sterile flowers on the outside are the first to open whereas the fertile buds in the centre have yet to open. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Fertile flowers in centre have opened. They lack petals. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Mixed in with still un-opened flower buds the fertile flowers have many long off-white stamens terminating in a cream-coloured anther. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
With careful counting there are between 14 and 18 stamens on each fertile flower. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Stamens long and many; anthers relatively small. |
4th June 2011, Upper Padley, Grindleford, Derbys. | Photo: © RWD |
Normal sterile flowers have four cream-coloured 'petals' (actually bracts) which have shallow sawtooth-shaped teeth near the rounded ends. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Sterile flowers with five 'petals' (bracts) are fairly common. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
As are those with but three bracts. |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Teeth on leaves has slightly deeper and forwardly-directed teeth than those on another similar Climbing Hydrangea (Hydrangea petiolaris). |
15th June 2010, High Newton, Cumbria. | Photo: © RWD |
Upper surface of leaves is slightly rougher in appearance that the shinier leaves of Hydrangea petiolaris. |
3rd Oct 2018, Ranby, Chesterfield Canal, Notts. | Photo: © RWD |
The fruits are small. The flower stems are fractally branched at 60° angles. |
3rd Oct 2018, Ranby, Chesterfield Canal, Notts. | Photo: © RWD |
From the top the fruits are oval with a central hole. |
3rd Oct 2018, Ranby, Chesterfield Canal, Notts. | Photo: © RWD |
Most fruits have an oval outline and two styles splayed out as seen from the top, but maybe 5% have 3 styles and are round instead (with 2 examples being within the photo). |
3rd Oct 2018, Ranby, Chesterfield Canal, Notts. | Photo: © RWD |
An oblique view of a fruit with 2 styles splayed outwards. |
3rd Oct 2018, Ranby, Chesterfield Canal, Notts. | Photo: © RWD |
Some new leaves have a puzzling yellow-red 'bud' which perhaps are just more new but unopened leaves(?) |
Easily identified as : a More likely to be found climbing up the walls of a house than anywhere else in the UK, but some are to be found clambering up shrubs and trees as one set of the above photos shows. There are a few Climbing hydrangeas, most are used as garden plants in the UK and are native to Japan and China. Japanese climbing-hydrangea (Hydrangea anomala) has forwardly directed teeth on the leaves and 9 - 15 stamens and is from China. Another Climbing Hydrangea (Hydrangea petiolaris) has shallower teeth that are outwardly directed on shinier leaves and flowers with 15 - 20 stamens. Just to confuse matters, the above photographs have flowers with between 14 and 17 stamens and between 3 and 5 petals (although most have the nominal four). The BSBI lists only one hectad where Hydrangea anomala is growing 'wild' in the UK (and none for any other Climbing Hydrangea). Hydrangeas are poisonous containing cyanogenic glycosides amongst several other poisonous secondary metabolites.
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Hydrangea | anomala | ⇐ Global Aspect ⇒ | Hydrangeaceae |
Hydrangea (Hydrangeas) |
Mock-orange Family [Hydrangeaceae] |