Showing posts with label Sorbus. Show all posts
Showing posts with label Sorbus. Show all posts

Saturday, 27 June 2020

Townclose Hills SSSI (VC64)

Making the most of sunshine and a day off work I decided to walk over to Kippax and see what I could find at Townclose Hills SSSI, a fabulous remnant of unimproved limestone grassland affording great views over the lower Aire Valley. I wasn't quite sure what I would find, as the season seems to be whipping on at a rapid pace this year, with Butterfly-bush (Buddleja davidii) unbelievably in full bloom at the end of June. Thankfully, recent rain seems to have reinvigorated increasingly stressed flora, and grassland habitats at least are about where they should be for the time of year. Certainly, the grasslands of the SSSI were a carpet of flowers, with plenty to see. Highlights included:

Carpets of the native form of Kidney Vetch (Anthyllis vulneraria subsp. vulneraria), strictly prostrate to prostrate-ascending on weak stems.


Masses of Greater Knapweed (Centaurea scabiosa var. scabiosa), an uncommon plant locally.

Good swathes of Yellow-rattle (Rhinanthus minor subsp. stenophyllus), a subspecies more typical of calcareous fens further south but less fussy in Yorkshire where the local climate is more accommodating.


Perforate St John's-wort (Hypericum perforatum) which many will not consider that exciting, but I'm increasingly of the view that its not that common. I suspect it is widely over-recorded, especially in Yorkshire, for its hybrid Des Etang's St John's-wort (Hypericum x desetangsii). Recorder's shouldn't assume Perforate St John's-wort unless they have not checked the sepals carefully for the absence of teeth. By default it is therefore a plant that should only be named when in flower.


Plenty of Clustered Bellflower (Campanula glomerata) just starting to come into bloom.


With time to indulge this spring, and with an exceptional new BSBI Handbook to accompany Vince Jones' regional monograph (criminally under-printed by the Yorkshire Naturalist's Union), I've been dipping my toe into hawkweeds. One of the commonest locally, and earliest flowering, is Southern Hawkeed (Hieracium argillaceum). There was plenty of this in the grassland on steep slopes.


Moving down slope to the wooded margins of the SSSI provided:

Orange Whitebeam (Sorbus croceocarpa)


The largely sterile hybrid between Dewberry (Rubus caesius) and Raspberry (Rubus idaeus) i.e. Rubus x pseudoidaeus.



And, surprisingly, a highly scented hybrid Mock-orange (Philadelphus Lemoinei Group).


Into the woodland proper was a welcome plant of Soft Shield-fern (Polystichum setiferum), an uncommon species in the lowlands to the east of Leeds but one which is increasingly being found in small numbers in woodland habitats.


Saturday, 6 June 2020

Interesting Trees

In sorting out photos from the last couple of months, I realise that I have quite a few photos of unusual trees that may be of interest to others. So for an easy post ...

2020 seems to have been an exceptional year for blossom, with a non-stop heady rush that was perhaps over a little too soon. One tree I always look out for a few weeks after the Wild Cherry (Prunus avium) flowers, is its double-flowered cultivar 'Plena'. This can be found in plantation woodland around the boundary of Oulton Park (VC63).



Near the above tree, is the double flowered cultivar of Horse Chestnut (Aesculus hippocastanum 'Baumanii'). I have been walking under this tree for years and never noticed it, but perhaps work commitments in a normal May mean I have never passed at the right time. I find its stumpy little candles rather unexciting, and that probably explains why its not seen more often. Foolishly I seem to have mislaid my photos, so here is an image from the Deepdales nursery website.


Unusual Sycamores (Acer pseudoplatanus) always catch my eye, and a favourite is f. variegatum 'Simon-Louis Fréres'. There is a fine tree in the churchyard at Swillington (VC64).


This handsome Common Whitebeam, at the edge of plantation in Water Haigh Woodland Park (VC63) is Sorbus aria 'Lutescens'. It remains white well into the summer when the young fruit are markedly pubescent.



In complete contrast this (I think) is Sorbus aria 'Majestica', with very large glossy leaves. It has been planted on the boundaries of Swillington Brickworks (VC64).


At the same location, Purple Filbert (Corylus maxima 'Purpurea') has self-sown from an unknown source. I think I am on safe ground (in the absence of fruit) with the ID given the excellent purple coloration, but most hazels encountered from introductions seem to be hybrid Kentish Cob types. Last year I found some of these with pale muddy purple leaves suggesting 'Purpurea' in the parentage.


The woodlands round the capped landfill at Newsam Green (VC64) include a few trees of Paperbark Birch (Betula papyrifera) amongst the Silver Birch (Betula pendula). These are only just reaching an age where the bark turns white, and the juvenile bark can be confusing.



Finally, to encourage more people to look at hawthorns as they come into fruit later this summer, here is a compare and contrast between the typically (not always, its not definitive) small-flowered Hawthorn (Crataegus monogyna) and its often large-flowered hybrid with Large-Sepalled Hawthorn (Crataegus rhipidophylla) i.e. Crataegus x subsphaerica. The hybrid is common and spreading locally, and probably elsewhere. Flower size is often a good way to pick out the non-native hybrid and its parent. However, the hybrid usually (but not always, some forms have clearly intermediate foliage) needs to be confirmed later when in fruit. Therefore, the large flowers may be the first indication that there is something potentially interesting to check again later in the year.


Sunday, 1 October 2017

Patch Botanising

The weather has been pretty ropy recently for botanising far from home, so I have been making use of gaps in the rain to get out on my local patch. The concept of a local patch is one well known to birders, and I think its something more botanists should embrace. Still the urge to jump in the car occasionally, in favour of developing a deeper sense of place. As a VCR its amazing how many records I receive for the same honeypot locations over and over again. One group will visit one year, another the next, another the next and before you know it the first group is visiting again. There are of course benefits from this, who doesn't want to visit nice sites, it keeps the records up to date, and the combined data is potentially worth more than the sum of its parts. But at the same time there is a big wide world out there, much of it is comparatively poorly botanised, and there are still some exceptional sites and plant populations waiting to be found.

Quite often the areas most poorly known are those on our own doorsteps. And yet these are the very locations we have the luxury of getting to know intimately, through the seasons and across the years. My local patch encompasses anywhere I can readily walk to from home, so allows for a variety of circular routes and diversions over a two to four hour period. It takes in the village, two VCs (63 & 64), rivers and waste ground, arable and woodland, post-industrial sites and ancient meadows. But a lot of bog standard suburban and rural habitats. So I am always amazed that there are still new things to find five years on. A slight difference in date or direction, and the familiar is thrown into new light and something new catches the eye. The more you walk a route the more you see, the background quite literally bleeds into the foreground as the eye detects increasing detail and the brain perceives even greater subtleties in shade and form.

Here are some recent highlights from my local patch. A bit heavy on the non-natives, but to everything there is a season ... (turn, turn turn, you know the rest!). I would be keen to receive news from the local patches of others to help build up knowledge of all those overlooked little corners where the mundane mingles with the unexpected.

This year seems to be the year of Greater Duckweed (Spirodela polyrhiza), a great rarity in VC64. It has come out of nowhere, with Mike Wilcox finding it along kilometres of the Leeds & Liverpool Canal upstream of Leeds, while I have found it on the Aire & Calder Navigation in Woodlesford with abundant Fat Duckeed (Lemna gibba).

Photo by Stefan Lefnaer (Wikimedia Commons)

An area where earth had been moved earlier in the year by Rothwell Football Club has rewarded me with both (not so)Common Ramping-fumitory (Fumaria muralis) and the quirky (but otherwise past its best) rusty orange fruiting spikes of Quinoa (Chenopodium quinoa).



Down at St Aidan's there were a few fruiting plants of the VC64 rarity Nodding Bur-Marigold (Bidens cernua var. cernua).


While obscure corners of Rothwell Country Park have rewarded me with Argentinean Vervain (Verbena bonariensis), Japanese Anemone (Anemone x hybrida 'Honorine Jobert'), Japanese Quince (Chaenomeles japonica), and somehow, and showing the tenacity of plants, a yellow-flowered Hybrid Tea Rose (Rosa cultivar) growing out of an old spoil heap.





Elsewhere the stuff of nightmares. Floating Pennywort (Hydrocotyle ranunculoides) in the Navigation. In theory finding this plant, while still so tenuously established, is great as it affords the opportunity for a rapid response to protect the canal and river from further spread. Unfortunately this does not account for the ineptitude of the Canals and Rivers Trust, which has not to date lived up to its self-proclaimed role as "protector" and "custodian" of England's waterways. This despite having been informed in July (photo late September) and having direct management control over this location.


Less troublesome but widely planted and naturalised in the local area are Swedish Whitebeam (Sorbus intermedia) and Mougeot's Whitebeam (Sorbus mougeotii). Note the greater number and closer arrangement of the leaf veins of the latter.



And of course I always have one eye open for the infraspecifics. I'm not sure if I am just noticing it more now that I know it exists, or if it is genuinely spreading, but I do have a soft spot for this variety of Prickly Sowthistle (Sonchus asper subsp. asper var. integrifolius). This time at Swillington Park.


Here's to what the next season has to offer. Happy hunting.



Monday, 8 May 2017

Stackhouse and Langcliffe (VC64)

With the weather forecast suggesting the west would be best on Saturday I headed over to Settle on the train to see what I could find. I had originally planned to head up to Winskill Stones, but going up Giggleswick Scar first it quickly became apparent that spring was not as far on as it is on my home patch to the east of Leeds. So I'll save the Stones for another day and regardless my meanderings soon went off plan with serendipitous results, including the discovery of Castlebergh Crag in Settle. Great views and some nice plants, including Wallflower (Erysimum cheiri), Alpine Currant (Ribes alpinum), and the pink-flowered form of Hybrid Bluebell (Hyacinthoides x massartiana). The latter very much a recurring theme of the day. But back to the subject of this post ...

The orange flowered form of Welsh Poppy (Meconopsis cambrica 'Aurantiaca') was lighting up verges in several locations. 


In Stackhouse I found this fine stand of Pheasant's-eye Daffodil (Narcissus poeticus subsp. recurvus). This subspecies is the last of the daffodils to flower, no doubt a reflection of its origins in Switzerland. It must pay to delay your flowering up there.


In and around the churchyard in Langcliffe there was the pink-flowered Hybrid Bluebell, a striking naturalised Lesser Periwinkle (Vinca minor 'Aureomarginata'), Scarce London-pride (Saxifraga x geum) and Spring Snowflake (Leucojum aestivum subsp. aestivum). 





Heading up onto the high ground above Langcliffe, the limestone turf was studded with Mountain Pansy (Viola lutea).


And then great views back towards Giggleswick Scar.


And finally, the surprise of the day and at a completely incongruous location, a mature tree of the rare Liljefor's Whitebeam (Sorbus x liljeforsii) in Old Plantation. No idea if it was planted or bird sown, but its been there a long time. The leaves of sterile side shoots had 6 free lobes, distinguishing it from the more usual (and in my experience more grey-green) Bastard Rowan (Sorbus x thuringiaca).