Aegilops

Aegilops cylindrica

Aegilops geniculata

Aegilops kotschyi

Aegilops neglecta

Aegilops triuncialis

Aegilops ventricosa

Aegopogon cenchroides

Aeluropus littoralis

Agropyron

Agropyron cristatum

Agropyron donianum

Agropyron trachycaulon

Agropyron x acutum

Agrostis includes both annual and perennial grasses characterized by slender or bristle-like foliage and branched panicles that bear small flowers.

Agrostis

Agrostis 'Bamboo Green Giant'

Agrostis 'Lago Lago'

Agrostis agrostiflora

Agrostis alpina

Agrostis avenacea

Agrostis canina

Agrostis canina 'Silver Needles' (v)

Commonly referred to as Brown Top or Common Bent grass, this tufted species is well-suited for upscale lawns maintained with regular mowing.

Agrostis capillaris

Agrostis capillaris 'Aberregal'PBR

Agrostis capillaris 'Barking'PBR

Agrostis capillaris 'Europutt'PBR

Agrostis capillaris 'Jorvik'PBR

Agrostis castellana

Agrostis curtisii

Agrostis delicatula

Agrostis elata

Agrostis exarata

Agrostis filifolia

Agrostis gigantea

Agrostis hyemalis

Agrostis juressii

Agrostis lachnantha

Agrostis mertensii

Agrostis montevidensis

Agrostis nebulosa is an annual grass that grows into a dense clump characterized by slender, vertical leaves that are a vivid green. In summer, it produces delicate, airy panicles filled with small cream-colored flowers, which later develop into seedheads.

Agrostis nebulosa

Agrostis palustris

Agrostis perennans

Agrostis pourretii

Agrostis pyrenaea

Agrostis rubra

Agrostis rupestris

Agrostis scabra

Agrostis stolonifera is a rapidly expanding grass that propagates through stolons—horizontal stems that take root as they spread—creating mats that can reach up to 1 meter in diameter. Its leaves are soft, broad, and a medium shade of green. The minute green flowers, sometimes tinged with red, are borne on slender, airy inflorescences that can grow up to 40 centimeters in height.

Agrostis stolonifera

Agrostis stolonifera 'Bengal'PBR

Agrostis stolonifera 'Green Twist'

Agrostis stolonifera 'Icy Flames' (v)

Agrostis stolonifera 'Julia Ann' (v)

Agrostis stolonifera var. palustris

Agrostis tenerrima

Agrostis vinealis

Aira consists of either annual or biennial tufted grasses characterized by slender, thread-like leaves and loose clusters of small flowers that appear in shades of silver or purple during the summer months.

Aira

Aira caryophyllea is an annual grass indigenous to the British Isles, creating compact clumps that can reach heights of up to 30 cm. Its leaves are thin and thread-like, contributing to its delicate appearance. From late spring to mid-summer, it produces loose clusters of silvery spikelets, which may occasionally have a hint of purple.

Aira caryophyllea

Aira caryophyllea subsp. caryophyllea

Aira caryophyllea subsp. multiculmis

Aira cupaniana

Aira elegantissima

Aira praecox

Aira provincialis

Aira tenorei

Airopsis tenella

Alopecurus includes both annual and perennial grasses that develop clumps of narrow leaves. The upright stems support dense, spike-like clusters of small flowers that appear in late spring and summer.

Alopecurus

Alopecurus aequalis

Alopecurus aristiulatus

Alopecurus arundinaceus

Alopecurus bulbosus

Alopecurus geniculatus

Alopecurus gerardii

Alopecurus lanatus

Alopecurus magellanicus

Alopecurus myosuroides is an annual grass that develops clumps reaching heights of up to 80 cm. Its leaves are slender and have a rough surface, growing as long as 16 cm. In summer, it produces yellow-green spikelets that can extend to 12 cm in length. This species is primarily regarded as a weed in the UK.

Alopecurus myosuroides

Alopecurus pratensis is a native grass widespread across the British Isles, growing in dense clumps that can reach heights of up to 1 meter. In May and June, it produces compact, cylindrical flowerheads that are soft and tapering. The prominent purple stamens offer a valuable source of pollen for bees and various other insects.

Alopecurus pratensis

Alopecurus pratensis 'Aureovariegatus' is a robust, herbaceous perennial that grows up to 1.2 meters tall. This grass features variegated leaves in vibrant shades of yellow and green. Its dense, spike-shaped flowering panicles add visual interest to its structure. The plant spreads through rhizomes, making it a great choice for ground cover in suitable environments.

Alopecurus pratensis 'Aureovariegatus' (v)

Alopecurus pratensis 'Aureus'

Alopecurus pratensis 'No Overtaking' (v)

Alopecurus rendlei

Alopecurus utriculatus Sol.

Alopecurus vaginatus

Alopecurus x brachystylus

Alopecurus x hybridus

Ammochloa pungens

A hardy native grass commonly found along coastal areas, Ammophila arenaria proliferates through resilient rhizomes, forming dense clusters of narrow, greyish-green leaves that remain throughout the year. Its leafy stems can reach heights of 1.2 meters and bear compact beige flowerheads during the summer months. This species is frequently used for stabilizing shifting sand dunes and serves as a food source for various moth caterpillars.

Ammophila arenaria

Ammophila breviligulata

Ampelocalamus mocrophyllum

Ampelocalamus scandens

Ampelodesmos comprises substantial evergreen grasses characterized by elongated, narrow leaves and elevated, asymmetrical flower spikes that emerge in late spring and continue through summer.

Ampelodesmos

Ampelodesmos mauritanicus is a robust, clump-forming evergreen grass that creates dense tufts of resilient, leathery foliage, typically reaching dimensions of around 1 meter in height and width. During late spring and early summer, this species produces arching stems that can extend up to 2 meters tall, adorned with feathery flowerheads in white, cream, or purple that droop gracefully to one side and sway lightly with the wind.

Ampelodesmos mauritanicus

Ampelodesmos mauritanicus white-flowered

Andropogon consists of grasses that can be either annual or perennial. They feature narrow leaves and bear small flowers in simple or branched racemes, frequently adorned with noticeable awns. Flowering typically occurs during the summer or autumn months.

Andropogon

Andropogon bicornis

Andropogon capillipes

Andropogon distachyos

Andropogon elliotii

Andropogon gerardi 'Brocken Delight'

Andropogon gerardi 'Ipg Agro2'PBR

Andropogon gerardii is a robust perennial grass characterized by its tightly packed clumps of narrow, blue-green foliage that can reach lengths of 30 cm, displaying a hint of purple in the fall. The plant features tall, upright stems that can grow to 2 meters, topped with racemes approximately 10 cm long, showcasing purple-red spikelets that emerge in autumn.

Poaceae