illustration

Tor grass Brachypodium pinnatum with ligule, spikelet, and lemma detail

Tormentil Potentilla erecta plant showing both shapes of leaves

Star sedge Carex echinata plant with two stigmas, ligule, fruit, female glume and leaf tip

Diagram of schematic tree, very simplified colour wash over pen and ink showing how the root system is as large as the tree above ground

Stiff sedge Carex biglowii with rhizome and vegetative tufts, two stigmasm ligule, fruit and glume

Red clover Trifolium pratensis plant

Sundew Drosera rotundifolia with basal rosette of leaves and emerging flowering spikes

True fox sedge Carex vulpina tussock

Sunflower Helianthus annuus close up of one flwoer

Tubular water dropwort Oenanthe fistulosa in amongst grasses with flowering head and seed head, and showing the stem swelling as well as leaves

Sweet flag Acorus calamus fruit growing from leaf, pencil

Potato Solanum tuberosum vs Sweet potato pomoea batatas tuber diagram

Sweet woodruff Asperula odorata with cross section of stem and seeds and flowers on the plant

Sweetcorn Zea mays plant

Sycamore Acer pseudoplatanus leaves with winged fruit amd flowers

Tall fescue Festuca arundinaceae with ligule spikelet and lemma details

Teasing Georgia Rose, cream flower with buds and fully flowering bloom

Sorghum Sorghum bicolor plant

Silver birch Betula pendula pen and ink tree shape without leaves

Southern Marsh Orchid Dactylorhiza praetermissa

Silver birch Betula pendula trees vignette

Soybean Glycine max with pods and one flower

Silver Birch Betula pendula twig with buds and catkins and leaf

Spiked Water Milfoil Myriophyllum spicatum pencil drawing showing the plant below and above the water