| Common name (English) | |
|---|---|
| Panicum decompositum | Australian millet |
| Panicum miliaceum | Proso millet, Chinese millet |
| Parsonsia lanceolata | |
| Paspalum dilatatum | Bastard Millet Grass |
| Paspalum distichum | Knotgrass, Buffalo Quick Paspalum |
| Passiflora caerulea | Bluecrown passionflower, Blue Passionflower |
| Passiflora edulis | Passion fruit |
| Paulownia tomentosa | Empress tree |
| Pentzia incana | Anchor Karoo |
| Perilla frutescens | Beefsteak |
| Persea americana | Avocado, Pear tree |
| Petroselinum crispum var. crispum | Parsley, double curled parsley |
| Phacelia tanacetifolia | Lacy phacelia, Scorpion weed |
| Phalaris canariensis | Canary grass, Canary-Grass |
| Phillyrea angustifolia | Narrow-leaved mock privet |
| Phoenix canariensis | Canary Island Date Palm |
| Phoenix dactylifera | Date palm |
| Phoenix theophrasti | |
| Phormium tenax | Lowland flax |
| Physalis angulata | Cutleaf groundcherry, Angular Winter-cherry |