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Plants of the Mannheim Rhine and Muehlau Ports |
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There are many common ruderal plants in Mannheim's Rhine ports of which several are shown here.
But also plants which did not occur originally, i.e. neophytes, were introduced with shiploads.
Examples are the Eastern Rocket Sisymbrium orientale from Eastern Europe,
and probably also the Annual Valerian Centranthus calcitrapae from the Mediterranean.
On the now almost unused wasteland in the ports also other plants found a new home, such as the Twiggy Spurge Euphorbia saratoi,
the Branched Horsetail Equisetum ramosissimum,
the Bald Wall Bedstraw Galium parisiense var. leiocarpum,
or the Garden Baby's Breath Gypsophila scorzonerifolia, which are generally rather rare, but have important occurrences here and at some other locations in Germany.
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This and the above photo: The Mannheim Rhine port in 2022, seen from Ludwigshafen
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Draba verna agg. / Common Whitlowgrass Brassicaceae / Crucifers
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Arabidopsis thaliana / Thale Cress Brassicaceae / Crucifers
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Sagina procumbens / Procumbent Pearlwort Caryophyllaceae / Campion Fam.
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Taraxacum sect. Ruderalia / Dandelion Asteraceae / Composite Fam.
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Erodium cicutarium / Common Crane's-Bill, Philary Geraniaceae / Crane's-Bill Fam.
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Oxalis corniculata var. atropurpurea / Procumbent Yellow Sorrel Oxalidaceae / Wood-Sorrel Fam.
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Cardamine hirsuta / Hairy Bitter-Cress Brassicaceae / Crucifers
fruiting
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Capsella bursa-pastoris / Shepherd's Purse Brassicaceae / Crucifers
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Lepidium ruderale / Narrow-Leaved Pepperweed, Roadside Pepperweed Brassicaceae / Crucifers
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Brassica rapa / Field Mustard Brassicaceae / Crucifers
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Brassica napus / Oilseed Rape, Rapeseed Brassicaceae / Crucifers
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Sonchus oleraceus / Smooth Sow-Thistle Asteraceae / Composite Fam.
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with Common Poppy Papaver rhoeas with Bur Chervil Anthriscus caucalis
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Sisymbrium orientale / Eastern Rocket Brassicaceae / Crucifers
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Sisymbrium orientale / Eastern Rocket Brassicaceae / Crucifers
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Senecio vulgaris / Groundsel Asteraceae / Composite Fam.
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Saxifraga tridactylites / Rue-Leaved Saxifrage Saxifragaceae / Saxifrage Fam.
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Myosotis ramosissima / Early Forget-me-not Boraginaceae / Borrage Fam.
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Stellaria media / Common Chickweed Caryophyllaceae / Campion Fam.
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Anthriscus caucalis / Bur Chervil Apiaceae / Umbellifers
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Galium aparine / Cleavers, Sticky Willy Rubiaceae / Bedstraw Fam.
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Anthemis austriaca / Austrian Chamomile Asteraceae / Composite Fam.
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Tripleurospermum inodorum / Scentless Mayweed Asteraceae / Composite Fam.
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Amaranthus retroflexus / Common Pigweed Amaranthaceae / Amaranth Fam.
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Solanum lycopersicum / Tomato Solanaceae / Nightshade Fam.
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Phacelia tanacetifolia / Phacelia Hydrophyllaceae / Phacelia Fam.
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Hordeum vulgare / Six-Rowed Barley Poaceae / Grass Fam.
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Lepidium virginicum / Least Pepperwort Brassicaceae / Crucifers
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Lepidium densiflorum / Common Pepperweed Brassicaceae / Crucifers
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Geranium purpureum / Little Robin, Lesser Herb Robert Geraniaceae / Crane's-Bill Fam.
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Nepeta cataria / Catnip Lamiaceae / Mint Fam.
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Sedum acre / Biting Stonecrop Crassulaceae / Stonecrop Fam.
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Sedum album / White Stonecrop Crassulaceae / Stonecrop Fam.
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Crepis tectorum / Narrow-Leaved Hawk's-Beard Asteraceae / Composite Fam.
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Sisymbrium officinale / Hedge Mustard Brassicaceae / Crucifers
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Galium parisiense var. leiocarpum / Bald Wall Bedstraw Rubiaceae / Bedstraw Fam.
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Galium parisiense var. leiocarpum / Bald Wall Bedstraw Rubiaceae / Bedstraw Fam.
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Plantago arenaria / Branched Plantain Plantaginaceae / Plantain Fam.
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Chondrilla juncea / Rush Skeletonweed Asteraceae / Composite Fam.
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Chondrilla juncea / Rush Skeletonweed Asteraceae / Composite Fam.
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Nassella tenuissima / Mexican Feather Grass Poaceae / Grass Fam.
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Ruta graveolens / Rue Rutaceae / Rue Fam.
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Eruca vesicaria / Garden Rocket Brassicaceae / Crucifers
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Festuca myuros / Rat's-Tail Fescue Poaceae / Grass Fam.
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Bromus diandrus / Great Brome Poaceae / Grass Fam.
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Bromus sterilis / Poverty Brome Poaceae / Grass Fam.
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Potentilla argentea agg. / Hoary Cinquefoil Rosaceae / Rose Fam.
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Erigeron sumatrensis / Tall Fleabane Asteraceae / Composite Fam.
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Parietaria judaica / Pellitory-of-the-Wall Urticaceae / Nettle Fam.
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Dysphania pumilio / Clammy Goosefoot Amaranthaceae / Amaranth Fam.
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Centaurea diffusa / Diffuse Knapweed Asteraceae / Composite Fam.
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Centaurea australis x diffusa / Hybrid Knapweed Asteraceae / Composite Fam.
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Phytolacca esculenta / Pokeweed Phytolaccaceae / Pokeweed Fam.
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Plantago coronopus subsp. coronopus / Buck's-horn Plantain Plantaginaceae / Plantain Fam.
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Petrorhagia prolifera / Proliferous Pink Caryophyllaceae / Campion Fam.
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On May 3, 2009 I found several flowering plants of the Annual Valerian Centranthus calcitrapae in an old crane rail on the east side of the Muehlau port,
this was a first find of the Mediterranean plant for Germany.
Together with Centranthus calcitrapae I found Galium parisiense at that time but not the variety leiocarpum with hairless fruits,
which today is not uncommon at the Mannheim Rhine port and since long time on the Friesenheimer Island, but the nominal variety with hairy fruits,
which I haven't seen in Mannheim since then.
Unfortunately, the location was destroyed in the following winter when the expansion of the container port was built at this point.
In June of 2009 Centranthus calcitrapae was also found in the port of Kehl.
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Centranthus calcitrapae / Annual Valerian Caprifoliaceae / Honeysuckle Fam.
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Centranthus calcitrapae / Annual Valerian Caprifoliaceae / Honeysuckle Fam.
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Galium parisiense s.str. / Wall Bedstraw Rubiaceae / Bedstraw Fam.
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Galium parisiense s.str. / Wall Bedstraw Rubiaceae / Bedstraw Fam.
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Vicia villosa / Hairy Vetch Fabaceae / Legumes
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On May 22, 2021 I found a big population of Garden Baby's Breath Gypsophila scorzonerifolia at an unused track near the Muehlau port.
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Gypsophila scorzonerifolia / Garden Baby's Breath Caryophyllaceae / Campion Fam.
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Gypsophila scorzonerifolia / Garden Baby's Breath Caryophyllaceae / Campion Fam.
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At the exit of the Muehlau port to the Rhine, where the surface is not sealed with asphalt or concrete slabs,
there are large populations of other plants:
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Equisetum ramosissimum / Branched Horsetail Equisetaceae / Horsetail Fam.
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Equisetum ramosissimum / Branched Horsetail Equisetaceae / Horsetail Fam.
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Twiggy Spurge Euphorbia saratoi
and
Viper's Bugloss Echium vulgare
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Twiggy Spurge Euphorbia saratoi
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Euphorbia saratoi / Twiggy Spurge Euphorbiaceae / Spurge Fam.
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Myosotis arvensis / Field Forget-me-not Boraginaceae / Borrage Fam.
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Valerianella locusta / Corn Salad Caprifoliaceae / Honeysuckle Fam.
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Capsella bursa-pastoris / Shepherd's Purse Brassicaceae / Crucifers
petal-less variant
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Isatis tinctoria / Woad Brassicaceae / Crucifers
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Barbarea stricta / Small-Flowered Winter Cress Brassicaceae / Crucifers
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Sisymbrium loeselii / False London Rocket Brassicaceae / Crucifers
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Rorippa austriaca / Austrian Yellow-Cress Brassicaceae / Crucifers
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Diplotaxis tenuifolia / Perennial Wall Rocket Brassicaceae / Crucifers
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Silene vulgaris subsp. vulgaris / Bladder Campion Caryophyllaceae / Campion Fam.
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Medicago x varia / Sand Lucerne = Medicago falcata x sativa Fabaceae / Legumes
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Securigera varia / Purple Crownvetch Fabaceae / Legumes
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Rumex thyrsiflorus / Thyrse Sorrel Polygonaceae / Knotweed Fam.
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Potentilla recta / Sulphur Cinquefoil Rosaceae / Rose Fam.
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Brassica nigra / Black Mustard Brassicaceae / Crucifers
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Solanum dulcamara / Bittersweet Solanaceae / Nightshade Fam.
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Solanum nigrum subsp. schultesii / Schultes's Nightshade Solanaceae / Nightshade Fam.
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Rosa canina / Dog Rose, Wild Briar Rosaceae / Rose Fam.
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Rubus caesius / Dewberry Rosaceae / Rose Fam.
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Morus alba / Chinese White Mulberry Moraceae / Mulberry Fam.
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Celtis australis / European Nettle Tree Cannabaceae / Hop Fam.
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Vitis sylvestris ? / Grape Vine Vitaceae / Grape-Vine Fam.
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Acer negundo / Box Elder Sapindaceae / Golden-Rain Tree Fam.
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Acer saccharinum / Silver Maple Sapindaceae / Golden-Rain Tree Fam.
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Paulownia tomentosa / Princess Tree, Foxglove Tree Paulowniaceae / Foxglove Tree Fam.
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Mahonia aquifolium / Shining Oregon Grape, Tall Oregon Grape Berberidaceae / Barberry Fam.
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Ailanthus altissima / Tree of Heaven Simaroubaceae / Tree-of-Heaven Fam.
with Acer negundo (right) and Euphorbia saratoi (in front)
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Filling stations for ships at the Mannheim Rhine port
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This list is surely not complete yet. It will be continued on occasion.
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