Cotoneaster franchetii Bois, f.159-161,164 1902. (syn: Pyrus franchetii (Bois) M. F. Fay & Christenh.);

China (Yunnan), ?N-Thailand, Swaziland (I), South Africa (I), USA (I)
(California (I), Oregon (I), Washington State (I)), Ireland (I), Northern
Ireland (I), Argentina (I), Austria (I), Germany (I), Switzerland (I), France
(I), Great Britain (I), Spain (I), SW-Australia (I), New Zealand (I)
as per Catalogue of Life;

Cotoneaster franchetii (Franchet’s cotoneaster or orange cotoneaster) is a species of Cotoneaster native to southwestern China, in the provinces of Guizhou, Sichuan, Xizang, and Yunnan, and also in adjacent northern Myanmar and northern Thailand.[1][2]

It is an evergreen or semi-evergreen shrub growing to 3 metres (9.8 ft) tall. The leaves are oval-acute, 2–3.5 centimetres (0.79–1.38 in) long and 1–1.5 centimetres (0.39–0.59 in) broad, shiny green above, pubescent below with dense whitish to yellowish hairs. The flowers are produced in corymbs of 5–15 together, each flower 6–7 millimetres (0.24–0.28 in) diameter, with the five petals pink on the outer side, white on the inner side. The fruit is a red pome 6–9 millimetres (0.24–0.35 in) diameter; they are eaten by fruit-eating birds, which disperse the seeds in their droppings.[1][3][4]
Cotoneaster franchetii is a popular ornamental plant.
It has escaped from cultivation and become locally naturalised in parts of the British Isles and the Pacific Northwest of North America.[3][4]

(from Wikipedia on 10.3.17)






Have decided to share with group members how best to go about naming a Cotoneaster from photographs rather than taking pressed specimens, the traditional way of naming plants (which would apply to most genera at the fruiting stage, though for different genera particular characteristics many be especially important).  Next summer I shall take a set of photos of this specimen in flower. I trust you will see how by taking extra photos and selecting the best  to post provides so much more information, aiding the identification process.  One does not need to take as many as I did on this occasion; I typically take 15-30 for plants in flower or fruit if it is a plant I am uncertain about or is photogenic.  As I inspect postings of different genera on efI I shall recommend which parts/ characteristics need special attention for each of the more difficult genera to identify.
I recently photographed a naturalised Cotoneaster (presumably spread by a bird from a garden plant) in my local village in the UK. Neglected to carry a ruler with me as I recommended.
I originally took 75 photos (being digital these cost nothing and did not take me long) which after I quickly checked through, 20 were deleted due to not being fully in focus or not exposed well etc.  From the remainder, 12 have been chosen to post to show the various features of the plant incl. the number of nutlets in the fruits.
See attached images. 
By taking more photos (rather than just I or 2), looking at them closely on a computer screen and selecting the best to show various characteristics you will familiarise yourself better with each species in the wild and help you notice any differences with similar specimens to
help decide on whether it is worth photographing in expectation that it might prove to be a different species of the genus. It will also enable you to note where a particular species grows and how common or uncommon it is.  This is useful information.
I imagine some reading these notes may be shocked by the number of photos taken (particular if they have not embraced digital photography yet) and imagine it to be too time-consuming but once you get into the routine (and habit) of taking many photos and editing/selecting on a computer screen, you speed up.   But do need to be methodical and organised.

This Cotoneaster, being a naturalised cultivar, has been determined by Jeanette Fryer from these images.
It is C.franchetii Bois  Series FRANCHETIOIDES – which represents a NEW RECORD of an Alien plant for the vice-county of Buckinghamshire.  According to ‘Alien Plants of the British Isles (Clement & Foster, 1994) Franchet’s Cotoneaster has been confused with C.dielsianus and C.sternianus. Established garden escape mainly in S.England and Ireland including on an open limestone rock-face near Killarney. 
A native of Yunnan.  It has been common in cultivation since early 1900 in areas of Europe where the winters are not too cold (which applies to where I live) and on the west coast of North America.  This shub is extremely attractive in autumn when weighed down with orange-red, pear-shaped fruit which contrast well with the silvery-gray foliage.  It is wind tolerant and good for planting in coastal regions. 
Interestingly, I came across a different Cotoneaster, also naturalised, perhaps some 1.5km away, which proved to be C.sternianus Series STERNIANUS, which C.franchetii has been confused