roots

Lesser spearwort Ranunculus flammula with flowers and buds

Lesser Water Parsnip Berula erecta with individual flower and fruit

Lily of the valley Convallaria majalis raceme of flowers growing against wide green leaf

Lily of the valley Convallaria majalis leaves and flowers

Lime Tilia europaea bark study

Linear leaf diagram showing the long thin shape of this leaf type

Corolla lip diagram

Lobed leaf diagram

Iris in gravel with blue petals

Hemlock Water dropwort Oenanthe crocata with details of the roots, of an individual leaf, and of one flower and one fruit

Hemp Agrimony Eupatorium cannabinum pencil drawing

Herb paris Paris quadrifolia with fruit emerging from four leaves

Herb robert Geranium robertianum with one leaf scarlet and red stems clear, along with pink flowers and seed pods

Holly Ilex aquifolium leaves with a cluster of red berries at the centre

Honeysuckle Lonicera periclymenum plant with flower and red berries and elephant hawkmoth Deilephila elpenor visiting the flower with proboscis outstretched

Honeysuckle Lonicera periclymenum in flower, flushed pink, with detail of the shiny red berries

Hop Humulus lupulus fruit with leaves

Horse Chestnut Aesculus hippocastanum twig and conker with fruit peeping out from the spiky seed cover

Horse Chestnut Aesculus hippocastanum flowering spike or candle

Horseshoe vetch Hippocrepis comosa with wiggly seed poda and yellow flowers

Hostas Funkia in flower growing in a large blue and white china pot

Indian Rhubarb Darmera peltata pencil drawing showing flowers and one leaf

Iris seed pods, one open and the other not yet open

Italian Rye grass Lolium multiflorum and individual spikelet