Abraham, Isaac and Jacob

Flower: Violet-blue flowers in leafy clusters. The mauve-coloured stamens are prominent. Flowers measure between 9 and 12mm across. Fruit: Ridged nutlets. Leaves: A hairy, creeping perennial with upright stems and rough, heart-shaped leaves. The large leaves are stalked and have a sandpaper-like texture. A garden escape species which sometimes naturalises in the wild in the UK.

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False Acacia

Flower: Cream-white, pea-like flowers. The flowers hang down in a loose spike and are similar in appearance to Laburnum but creamy-white and not yellow. Fruit: Brown pea-like pods, up to 4 inches long. Leaves: Deciduous. Dark green, pinnate leaves, up to 25cm in length. 3 to 9 pairs of blunt, oval leaflets. Leaflets are untoothed.

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Two-spined Acaena

Flower: Globular flowerheads. Flowers are without petals. Each flower has 2 spines. White stamens. Fruit: The fruit is globular and spiny. The spines are purplish-red. Fruits measure up to 3cm in diameter. Leaves: A mat-forming perennial with bright green, pinnate leaves, up to 12cm long. The toothed leaflets are in 6 to 8 opposite pairs, plus a terminal leaflet. The young stems are hairy and often tinged red. Garden escape species.

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Spineless Acaena

Flower: Globular, petalless flowers. Fruit: Globular fruits usually spiny but often without spines. Leaves: A mat-forming perennial garden escape species. The pinnate leaves are purplish and feathery. Leaflets are toothed.

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Winter Aconite

Flower: Cup-shaped flowers, up to 3cm wide. The flowers have large, deeply cut, leafy bracts at their bases. Fruit: Follicles which contain the seeds. Leaves: A perennial with deeply cut, glossy, hairless basal leaves. Throughout the British Isles, Winter Aconite is most common in the east of England and Scotland.

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Grey Alder

Flower: Pendulous, red-brown and becoming yellow later (male catkins). Red, erect and cylindrical (female catkins). Male and female catkins present on same tree. Fruit: Wooded cones which persist on the tree throughout winter months. Leaves: Deciduous. Hairy, ovate and pointed, glossy, grey beneath.

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Italian Alder

Flower: Italian Alder (Alnus cordata) produces small, inconspicuous flowers that are typically arranged in pendulous catkins. These catkins can be either male or female. Male catkins are slender and yellowish-green, and they release pollen into the air. Female catkins are shorter and more cylindrical, with ... Fruit: Italian Alder (Alnus cordata) produces elongated and cylindrical catkins, which are an important part of its reproductive structures. These catkins are typically pendulous, hanging from the branches, and they come in two main types: male and female. Male catkins are usually longer and more slender, ... Leaves: The leaves of the Italian Alder (Alnus cordata) are characterized by their heart-shaped form and serrated edges. These deciduous leaves are typically medium to dark green in color and have a glossy appearance on their upper surface. They are arranged alternately along the branches and can grow to be...

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Green Alkanet

Flower: The flowers of Green Alkanet (Pentaglottis sempervirens) are an intense, vivid blue in color, shaped like a star, and they typically bloom in clusters. These flowers are notably attractive to pollinators such as bees and butterflies due to their nectar-rich nature. Each individual flower consists of... Fruit: The fruit of Green Alkanet (Pentaglottis sempervirens) is typically small and nut-like, known as a nutlet. These nutlets develop after the flowering period and contain seeds. They are often dark in colour and quite small, each containing the potential to produce a new plant if they find suitable con... Leaves: The leaves of Green Alkanet (Pentaglottis sempervirens) are elongated and rough in texture, often hairy and lance-shaped. They have pronounced veins and are arranged alternately along the stems. The leaves resemble those of the forget-me-not, having a coarse texture and covered in tiny, stiff hairs,...

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Alkanet

Flower: Tight clusters of purplish-blue flowers. Roundish petals. Densely hairy. 5 stamens. Pollinated by bees. Fruit: Brown, 4-parted fruit, about 4mm long. The seeds ripen from July to October. Leaves: The leaves and stems are very hairy. The leaves are elliptic and wavy-edged. Not toothed. The leaves are alternate along both sides of the stems. Biennial or perennial.

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Yellow Alkanet

Flower: Small clusters of pale yellow flowers. The flowers are tubular in shape. Pollinated by bees. Fruit: The fruit is a nutlet. Leaves: Simple, hairy, oval to lance-shaped leaves. The leaves have untoothed margins. Perennial.

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False Alkanet

Flower: Small clusters of bright blue flowers with white centres. Fruit: The fruit is a nutlet. Leaves: A very hairy perennial plant with erect stems and alternate, lance-shaped leaves.

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Four-leaved Allseed

Flower: The flowers are very small and appear inside forked heads. Fruit: The fruit is a near spherical capsule, just over 1mm in size. Leaves: A many-branched, hairless, winter annual plant with small oval to spoon-shaped leaves, in groups of 4 along the stems. Grows in sandy soils. In Britain, Four-leaved Allseed is most likely to be encountered on the Scilly Isles.

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Sweet Alyssum

Flower: Sweet Alyssum is a charming and petite flowering plant with delicate blooms. The flowers, shaped like small clusters, come in a variety of colours, including white, pink, purple, and lavender. Each flower consists of four petals, creating a dainty and intricate appearance. The fragrance of these blo... Fruit: Sweet Alyssum is not typically grown for its fruit, as it is primarily cultivated for its attractive and fragrant flowers. The plant produces small, inconspicuous fruits that are not commonly a focal point in gardening discussions. The main ornamental appeal of Sweet Alyssum lies in its profusion of... Leaves: Sweet Alyssum features small, lance-shaped leaves that contribute to its overall compact and neat appearance. The leaves are typically green in colour and form a dense carpet of foliage beneath the delicate clusters of flowers. These leaves are relatively small in size, adding to the fine texture of...

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Green Amaranth

Flower: The flowers appear inside erect, terminal spikes, tassel-like in appearance. 5 pink sepals. Wind pollinated. Fruit: The fruit is a dry seed. Leaves: A hairless, yellowish-green plant similar in appearance to Common Amaranth (Amaranthus retroflexus) but with shorter, looser tassels. The leaves are oval and pointed. Annual. A garden escape, infrequently naturalised.

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Common Amaranth

Flower: The inflorescence is a dense, tassel-like terminal spike. 5 sepals, no petals. Wind pollinated. Fruit: The fruit is a capsule, up to 2mm long. Black seeds. Seeds ripen from August to October. Leaves: A downy, greyish-green annual plant with pointed oval leaves. Short-stalked. Leaves measure up to 15cm (6 inches) long.

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