illustration

Lawson’s Cypress Chamaecyparis lawsoniana pen and ink drawing of a mature tree

Leaf axil diagram showing exactly where the leaf axil is located

Cornflower example of a linear leaf

Lesser celendine Ficaria verna with yellow flowers and bulbous root appendages

Intermediate Hook moss Scorpidium cossonii with individual fascicle and one leaf

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

Iris in gravel with blue petals

Italian Rye grass Lolium multiflorum and individual spikelet

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

Ivy Hedera helix sprig and black berries

Hemp Agrimony Eupatorium cannabinum pencil drawing

Ivy leaf Hedera helix one lone leaf

Herb paris Paris quadrifolia with fruit emerging from four leaves

Ivy leaved toadflax Cymbalaria muralis in flwoer

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