accurate

Rattan Palm Calamus frond and showing spiked stem, pen and ink

Red campion Silene dioica with buds and hairy stem

Red currant Ribes rubrum showing the shiny red currants and birght green leaves and flowers

Red Dead Nettle Lamium purpureum two flowers with a tangle of small leaves at their base

Reed canary grass Phalaris arundinacea pencil drawing of the spike

Reed Phragmites australis

Primrose Primula vulgaris

Reedmace Typha latifolia rhizome detail with roots and vegetative shoot growing from a rhizome

Proso millet Panicum miliaceum with two seed heads

Remote sedge Carex remota plant with ligule and glume and fruit detail

Purple Loosestrife Lythrum salicaria pencil drawing

Rice Oryza sativa plant

Passion flower Passiflora with tendrils and leaves and bud

Pendulous sedge Carex pendulosa with ligule, stigmas, and fruit

Pennywort Umbilicus rupestris showing round fleshy leaves and white flowers

Pepper saxifrage Silaum silaus with detail of individual flower

Perforated St Johns wort Hypericum perforatum showing flowers and leaves

Pheasants eye Adonis annua with pinnate leaves and red flowers

Phlox flowering head

Diagram of a pinnate leaf

Diagram of a Pollinia and within an orchid flower

Pondweed Potamogeton praelongus with seeds held erect out of the water and lanceolate leaves underwater

Opposite leaf diagram using nettle as example

Poppy Papaver rhoeas with bud, seed capsule, and leaf