Modifiers matching perennial:

• woody,
• popular,
• small,
• tough,
• tender,
• scented,
• leafy,
• sensitive,
• larger,
• soft,
• tall,
• herbaceous,
• hardy,
• loving,
• alpine,
• acaulescent,
• traditional,
• colorful,
• beautiful,
• evergreen,
• leggy,
• subtropical,
• native,
• vibrant,
• edible,
• upright,
• mature,
• taller,
• low,
• common,
• tropical,
• large,
• grown,
• familiar,
• simple,
• bushy,
• useful,
• ornamental,
• medicinal,
• deciduous,
• smaller,
• tolerant,
• exotic,

Simple categories matching useful:

• item,
• object,
• fluid,
• purpose,
• sensor,
• mode,
• thing,
• event,
• support,
• substrate,
• information,
• plant,
• food,
• metabolite,
• herb,
• animal,
• measure,
• perennial,
• antidepressant,
• solid,
• address,
• example,
• transformation,
• facility,
• article,
• structure,
• artefact,
• notion,
• material,
• appliance,
• publication,
• microbe,
• utility,
• piece,
• service,
• metal,
• technique,
• arrangement,
• place,
• action,
• fixture,
• view,
• identifier,
• species,
• gadget,
• option,
• handicraft,
• profession,
• position,
• creature,
• job,
• implement,
• remedy,
• report,
• science,
• result,
• craft,
• semiconductor,
• ability,
• routine,
• content,
• deposit,
• character,
• project,
• concept,
• acid,
• tip,
• feature,
• lipid,
• building,
• larva,
• utensil,
• point,
• palm,
• predator,
• activity,
• tube,
• energy,
• dog,
• improvement,
• situation,
• tree,
• characteristic,
• control,
• course,
• peripheral,
• lexis,
• application,
• anticonvulsant,
• function,
• tissue,
• index,
• phytochemical,
• polymer,
• life,
• library,
• graph,
• vocation,
• protein,
• room,
• residue,
• antibiotic,
• touch,
• microorganism,
• chemical,
• data,
• insect,
• sound,
• widget,
• output,
• artifact,
• amount,
• machinery,
• prefab,
• pot,
• shape,
• theory,
• card,
• phenomenon,
• task,
• plastic,
• language,
• salt,
• provisions,
• section,
• evidence,
• end,
• resource,
• byproduct,
• extra,
• organisation,
• component,
• alloy,
• intermediate,
• treatment,
• fuel,
• passion,
• solute,
• hydrocarbon,
• stuff,
• group,
• equipment,
• drug,
• regulation,
• info,
• instrument,
• links,
• rock,
• quantity,
• area,
• document,
• amenities,
• compound,
• ware,
• elements,
• tool,
• nutrient,
• vehicle,
• accessory,
• record,
• bacteria,
• institution,
• emotion,
• machine,
• attribute,
• book,
• location,
• reminder,
• constituent,
• movement,
• composition,
• arts,
• subject,
• container,
• model,
• invention,
• software,
• illustration,
• venture,
• catalyst,
• needle,
• theme,
• form,
• count,
• agent,
• work,
• gas,
• match,
• entity,
• topic,
• prize,
• trait,
• property,
• part,
• variation,
• behavior,
• indicator,
• agreement,
• value,
• message,
• fraction,
• page,
• help,
• class,
• polyhedron,
• relic,
• quality,
• device,
• mineral,
• macromolecule,
• bird,
• symbol,
• trifle,
• ornament,
• furniture,
• construction,
• unit,
• category,
• surface,
• instruction,
• labor,
• commodity,
• deliverable,
• program,
• table,
• clothes,
• mechanism,
• derivative,
• pharmaceutical,
• guidance,
• grass,
• layer,
• particle,
• plane,
• business,
• steroid,
• fibre,
• abstraction,
• garment,
• molecule,
• product,
• occupation,
• shop,
• vocabulary,
• operations,
• protection,
• assets,
• format,
• text,
• system,
• framework,
• knowledge,
• supply,
• trade,
• enterprise,
• calculation,
• organ,
• practice,
• details,
• button,
• protocol,
• necessity,
• weapon,
• toiletry,
• gear,
• organism,
• substance,
• behaviour,
• process,
• outbuilding,
• antioxidant,
• legume,
• database,
• credential,
• signal,
• skill,