Alexandre Boreau

Viola reichenbachiana, also known as the early dog-violet, pale wood violet, slender wood violet, hedge violet, or wood dog violet, is a species of flowering plant in the Viola genus. This species hybridises with Viola riviniana, the common dog-violet, to produce Viola × bavarica. The plant is named after the 19th-century botanist Ludwig Reichenbach. It is a rhizomatous herbaceous perennial that is widely known for its purple petals, and it typically resides along road banks or among other rich vegetation, as other wild pansies do. The name dog violet refers to its lack of scent, making it

Spergula morisonii, commonly known as Morison's spurry, is a species of flowering plant belonging to the family Caryophyllaceae. It is native range is Europe and northwestern Africa.

Polygonum arenastrum, commonly known as equal-leaved knotgrass, is a summer annual flowering plant in the knotweed family Polygonaceae. Other common names include common knotweed, prostrate knotweed, mat grass, oval-leaf knotweed, stone grass, wiregrass, and door weed, as well as many others. It is native to Eurasia and can be found on other continents as an introduced species and a common noxious weed. Knotweed was first seen in North America in 1809 and is now seen across much of the United States and Canada.

Pulmonaria longifolia, the narrow-leaved lungwort, is a semi-evergreen clump-forming herbaceous perennial plant, native to western Europe, including Britain, France, Spain, Portugal. It grows in semi-shaded habitats, such as woodland and scrub, to 2000 m above sea level. The stems are upright, 20–40 cm (rarely to 60 cm), not scaly at base, covered with bristly and some glandular hairs. The basal leaves are up to 40–60 centimetres (16–24 in) long and 6 centimetres (2.4 in) wide, narrowly lanceolate, gradually narrowed into a stalk, upper surface usually spotted white or pale green. The stem

Barbarea intermedia (common name medium-flowered winter-cress) is a species of flowering plant in the family Brassicaceae. It is native to northern Africa and many parts of Europe, and naturalized in some parts of Asia, Africa and Europe.

Ornithogalum divergens is a species of flowering plant in the star-of-Bethlehem genus Ornithogalum (family Asparagaceae). Native to central Europe and the Mediterranean region, it is characterised by its flattened, oval-shaped bulb surrounded by numerous small bulbils, linear green leaves with a white central stripe, and flat-topped clusters of white flowers with green stripes on the back of each petal. The plant typically grows in cultivated areas, disturbed habitats, and river valleys, often in sandy lowland soils. It represents the hexaploid form of the Ornithogalum umbellatum complex,

Fumaria bastardii, commonly, tall ramping fumitory or bastard's fumitory, is a tall (to 2 m.), many-branched herbaceous flowering plant native to Western Europe including the British Isles and the northern Mediterranean. The species is a weed of arable and disturbed ground, and occurs as an introduced alien in many areas of the world with suitable climates, including Southwest Australia and North America.

Antirrhinum barrelieri is a species of perennial flowering plant in the genus Antirrhinum (common snapdragons) in the family Plantaginaceae. Native to northeastern Spain, the species is a subshrub that favors subtropical conditions. A. barrelieri produce stems of between 30 cm (12 in) and 75 cm (30 in) tall, on which narrow leaves and 8 to 20 pink or purplish tubular flowers grow. Flowering and fruiting generally occurs between March and September within the species's native range. In 1855, the botanist Alexandre Boreau was the first to describe the species with its current name, which Boreau

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Rosa deseglisei is a species of flowering plant in the family Rosaceae, native to Europe, northwestern Africa, and Iraq. Most authorities consider it to be a subspecies or variety of Rosa corymbifera or Rosa canina.

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Polygonum rurivagum is a species of flowering plant belonging to the family Polygonaceae. Its native range is Europe, Africa and Temperate Asia.

Hieracium sylvularum is a species of flowering plant belonging to the family Asteraceae. Its native range is Europe to Caucasus. Synonyms: Hieracium chrysomaurum Hyl. Hieracium grandidens Dahlst. Hieracium pseudograndidens Schljakov

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