| plant ecology(noun, expression, study, treatment, science) |
| plant evolution(noun, expression, study, treatment, science) |
| plant extract(noun, expression, plant, organism, flora) |
| plant hormone(noun, expression, form, study, science) |
| plant kingdom(noun, expression, study, science, life) |
| plant life(noun, expression, study, science, life) |
| plant morphology(noun, expression, study, treatment, science) |
| plant pathology(noun, expression, study, treatment, science) |
| plant physiology(noun, expression, study, treatment, science) |
| pollen tube(noun, expression, study, science, life) |
| polyphyletic clades(noun, expression, study, treatment, science) |
| red algae(noun, expression, study, treatment, science) |
| rose family(noun, expression, study, treatment, science) |
| scrub(noun, study, science, life, flora) |
| shrubbery(noun, study, science, life, flora) |
| species problem(noun, expression, study, treatment, science) |
| stand(noun, study, science, life, flora) |
| sunflower family(noun, expression, study, treatment, science) |
| thicket(noun, study, science, life, flora) |
| undeveloped seed(nature, structure, seed) |