Wednesday, 1 January 2025

New Year Plant Hunts in Cornwall 2024/25

 The New Year Plant Hunt is organised by the BSBI and has now run for several years. Botanists and beginners from all the UK and Ireland, go out and about for 4 days (3 hours per trip allowed) over the new year period and log all plants they can find that are in flower - provided they are growing wild and are not planted or in gardens. Most of the plants I have featured can be found in most towns by anyone, there are few rarities flowering at this time of the year.

See https://bsbi.org/new-year-plant-hunt for more details. It's purpose is two fold. It gives some scientific data that, over time, may show trends for a warming or cooling climate and it gets people involved and interested in botany, especially those that had never tried it before. So, the following are plants from new year plant hunts in Cornwall from two organised field trips.

The first was at Mevagissey on the 29th December, organised by the Three Bays Wildlife Group. This is a sheltered coastal town in South Cornwall with a variety of habitats. The more habitats, the more likely you are to find more species flowering. I didn't photograph every single flower, but all in, we found 79 species of native or naturalised flowering plants here.

Betony - Betonica officinalis

Adria Bellflower - Campanula portenschlagiana
Red Valerian - Centranthus ruber
Sea Carrot - Daucus carota subsp gummifer
Mexican Fleabane - Erigeron karvinskianus

Common Whitlowgrass - Erophila verna
Mediterranean Spurge - Euphorbia characias
Wild Strawberry - Ficaria verna
Wood Avens - Geum urbanum
Atlantic Ivy - Hedera hibernica
Common Ragwort - Jacobaea vulgaris
Red Dead-Nettle - Lamium purpureum

Lesser Celandine - Ficaria verna
Jersey Cudweed - Laphangium luteoalbum
Ox-Eye Daisy - Leucanthemum vulgare
Small-flowered Buttercup - Ranunculus parviflorus
Field Madder - Sherardia arvensis
Red Campion - Silene dioica

Hedge Mustard - Sisymbrium officinale
Prickly Sow-Thistle - Sonchus asper
Hedge Woundwort - Stachys sylvatica
Dandelion - Taraxacum lampropyllum 
Verified by Alex Prendergast
Scentless Mayweed - Tripleurospermum inodorum
 Nasturtium - Tropaeolum majus (naturalised)
Navelwort - Umbilicus rupestris
Black Mullein - Verbascum nigrum
Germander Speedwell - Veronica chamaedrys
Thyme-leaved Speedwell - Veronica serpyllifolia
Hybrid Wild x Field Pansy - Viola x contempta 
(we also found Field Pansy nearby).
Garden Pansy in an arable field - Viola x wittrockiana
The steep walk up from the harbour towards Portmellon, we found Sea Campion in flower by these steps.

On the 31st December the Cornwall Botany Group led a hunt from Seaton to Downderry on the south east coast of Cornwall. Here's some of the species we found. I won't post photos of any already shown above though. We found a total of 66 flowering plants this time.
 


 Three-cornered Leek - Allium triquetrum
Snapdragon - Antirrhinum majus
Hybrid Elephant's Ears (naturalised on cliffs) - Bergenia x schmidtii (a first for VC2)
Trailing Bellflower - Campanula poscharskyana
Naturalised Hottentot Fig - Carpobrotus edulis
Wild Fennel - Foeniculum vulgare
Herb Robert - Geranium robertianum
Hebe c.v. naturalised widely on cliffs
Toothed Medick - Medicago polymorpha
Pink-headed Persicaria - Persicaria capitata (naturalised)
Sea Radish - Raphanus raphanistrum subsp maritimum
Rosemary (naturalised) - Rosmarinus officinalis
Bramble - Rubus fruticosus agg.
Sea Campion - Silene uniflora
Alexanders - Smyrnium olusatrum
Common Michaelmas Daisy (naturalised) - Symphotrychum x salignum
Sea Mayweed - Tripleurospermum maritimum
Gorse - Ulex europaeus
Sweet Violet - Viola odorata


 On both trips, we all had a great time and the weather was kind. A third trip planned for the 1st January 2025 at Hayle was cancelled due to forecast bad weather. Just as well, as it rained all day long, heavily!

I hope you enjoyed the selection: urban and coastal areas will always have more species flowering than inland rural areas, due to less frost/warmer climate and the influence of humans in providing additional habitats for smaller plants, such as car parks, wasteground, walls and such like.
 

 
Take care and happy new year.
Dave
 




Monday, 30 December 2024

Cornwall Botany - November and December 2024

 As the year draws to a close, the colder weather takes its toll on many plant species, so there is less to see than in the summer, which we all know already. But it's good to get out and about and there are always surprises, whatever the time of year. I am writing this at the end of December and we have had a few light frosts, hurricane gust storms, flooding, weeks of grey, still, misty weather with no sunshine and even a bit of snow in this period. However, the plants soldier on and the following are some of those plants I found on my recording trips at this time.

Heather is a late summer flowering plant, but early November is the latest I have ever seen it still flowering. I found this on a trip to the china clay country, which is pretty barren for plant diversity due to a lack of nutrients and stability in the soils left after mining.

Calluna vulgaris

  Some Sheep's-bit hanging on into the winter.

Jasione montana


The china clay waste sites are a haven for mosses and lichens, a subject I haven't really delved into yet, but I couldn't resist taking a  photo of some "Soldier" lichens, there were thousands of them.


Lunch at a Bodmin Moor pub yielded a Bacopa flowering in the tarmac of the car park. No doubt an escape from a nearby garden as there were no hanging baskets nearby. Car parks are often great places to find interesting plants; this same car park had most species of Willowherb in it in the summer, including the unusual New Zealand Willowherb.

Chaenostoma cordatum


A very late flowering Field Forget-me-not in the same pub car park.

Myosotis arvensis


A trip to a north Cornwall woodland revealed many hundreds of Marsh Ragwort. This species is found throughout much of the UK (excluding parts of the south east), but is is declining so much, it has been listed as Near Threatened. It likes damp or wet woodland rides and heaths in Cornwall. Note the very large terminal lobe on the leaves which other ragworts don't have. The flowers are also almost twice the diameter of common ragwort too.

Jacobaea aquatica


I sometimes photograph insects, provided I don't have to chase them around (like butterflies!). Given this was mid November, this beetle was rather torpid, clasping a Soft Rush stem. I was told online that is a Bronze Beetle.

Chrysolina banksi


Lesser Celandine leaves (and some flowers) are beginning to appear now, these are usually pretty much plain green, with perhaps some splodges on them of a different shade of green. Each year, I usually find some stunning looking variegated leaves, such as the one below that I found at Millendreath, near Looe. I had only heard of "Brazen Hussy" a purple leaved form grown in gardens and wondered why other varieites weren't listed on the BSBI database. So I dug deeper and reliable contacts informed me that all the Lesser Celandine variants grown in gardens are actually taken from the wild. They all occur as natural variations of Lesser Celandine. Of course, gardeners seek these out and cultivate them, but nature has already done all the work. I was given a link to some very interesting variants, so take a look at them and see if you can spot any this coming Spring.

http://www.johnjearrard.co.uk/plants/ficariaverna/genus.html

That link will take you to (mostly) all of the forms of Lesser Celandine currently recognised in the garden trade. Go to the home page and there are hundreds of plant species you can look at, a very good resource to bookmark. Anyway, the leaves below seem to fit the variant named "Brambling".

Ficaria verna "Brambling"

Mid month I took a trip to the Roseland Peninsular, around St. Just-in-Roseland, a picturesque place with an amazing flora too. Habitats ranged from churchyards with sub tropical plants to woodland, to salt marsh, rural lanes and wasteground. The more habitats you have, the more species you will find.


The following photos are some of the plants I found here, growing wild or naturalised.

 Thale Cress nowadays, is usually found in urban areas, like pavements and wasteground, so it was nice to find several hundred of them in an arable field.

Arabidopsis thaliana


 Also in the fields were Lesser Quaking Grass, which I'm finding more of in Cornwall recently. It grows much taller than Quaking Grass (Briza media) and its florets are all shades of green with no purple parts that the other two Briza species have. The stems are sturdy, but the stems holding the florets are flimsy, hence they "quake" in the slightest breeze.

Briza minor


 

 A stunning colour variant of Wild Radish, probably a crop relict previously sown as a cover crop.

Raphanus raphanistrum


 

Field Woundwort rounds off the arable fields, quite common in parts of Cornwall, but rare in other places. This species is also near threatened in England due to modern methods of agriculture.

Stachys arvensis


 

On some waste ground, I found a late flowering Black Nightshade. These are in the same family as potatoes and tomatoes; in fact, the flower is almost the same as that of a potato, but much smaller. Don't eat this plant or its berries though (which start off green then turn black) as they are mildly poisonous. A quote from https://www.wildfooduk.com/wild-plants/black-nightshade/ : "Ingestion causes effects delayed by 6 – 12 hours including vomiting, diarrhea, sweating, confusion, and abdominal pains." Personally, I don't eat any wild plants (other than the occasional blackberry).

Solanum nigrum

I had only seen Krauss' (or South African) Clubmoss as a weed in Heligan Gardens before. Although it was never planted there as it was introduced accidentally, being in a garden rather devalued the record somewhat. However, I found lots of it in St. Just-in-Roseland churchyard and a whole roadside bank covered in it nearby, the latter truly an escape into the wild. 

The BSBI plant atlas 2020 at https://plantatlas2020.org/atlas/2cd4p9h.4kf shows a smattering of records across the UK. There are 908 records in total with the majority recorded after 2000, so it's spreading rapidly.

Selaginella kraussiana


In a couple of places, in woodland and a rural by-way, I found Yellow-flowered Strawberries. The atlas at https://plantatlas2020.org/atlas/2cd4p9h.7q6xct shows a distinctly southern distribution. 

The atlas describes it thus "P. indica has been in cultivation in Britain since 1805, and grown in gardens for its yellow flowers and strawberry-like, but inedible, fruits. It was recorded from the wild by 1879 (Trengwainton, West Cornwall) and is clearly increasing, notably in south-eastern England and East Anglia, including Fenland. It may have been partly overlooked in the past in mown swards, since in leaf it can easily be passed over for Fragaria vesca" (Wild Strawberry). Credit to D.J. McCosh and J.O. Mountford for this description.

Potentilla indica




 In the churchyard, I found an unfamiliar species running rampant in neglected areas, spreading by stolons under the surface. A plant ID app got me to Creeping Saxifrage, later confirmed as this species. It's now fully naturalised here. Here's a composite photo showing the leaves and small flowers.

 Saxifraga stolonifera


Another unusual plant to be flowering this late in the year was a Tree Mallow, which usually flowers from spring through summer.

Malva arborea



Of course, one of stalwarts for providing lots of sweet almond smelling flowers in the winter is the Winter Heliotrope, widely naturalised throughout England and beyond.

Petasites pyrenaicus


For much of December, I didn't go out, due to poor health and bad weather. However, when I did get back, just before Christmas, I found some Round-leaved Water Crowfoot growing in tractor ruts on a china clay waste site. It will probably be flowering by February.

Ranunculus omiophyllus


Velvet Shank fungi looking great on a tree trunk.


 

This brings us to Christmas Eve, when I found I had a couple of hours of spare time, so I had a look around a small village near Rock to see what I could find. I recorded lots of species, but it was great to find Stinking Hellebore growing in a cornish hedge; only the second record for this that I've found here, they aren't native to Cornwall and are considered a neophyte. This one probably originated from fly tipped material.

Helleborus foetidus


 Some Leylandii  saplings on wasteground had me baffled for a while, but the nearby parent trees showed them to be Montery Cypress, self sown and growing well.

Hesperocyparis macrocarpa


An industrial estate tarmac road edge was the unlikely habitat for Corn Parsley, though I did also find it nearby in a field where it should be!

Sison segetum


That wraps up my winter finds of 2024 up to 28th December. My next blog will include my efforts on the BSBI's new year plant hunt, a project to find as many wild or naturalised species in flower as possible over the new year period. If you're reading this in time, see https://bsbi.org/ for full details and how to participate. Until then, happy plant hunting and a healthy, prosperous new year to you.

 

Dave











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