Modifiers matching crop:

• susceptible,
• mixed,
• sensitive,
• upland,
• broadleaf,
• diverse,
• productive,
• valued,
• tolerant,
• temperate,
• commercial,
• traditional,
• arable,
• perennial,
• industrial,
• interesting,
• annual,
• valuable,
• popular,
• intensive,
• important,
• local,
• new,
• main,
• economic,
• horticultural,
• alternative,
• strategic,
• outdoor,
• major,
• agricultural,
• higher,

Simple categories matching perennial:

• herb,
• allergen,
• plant,
• issue,
• pest,
• vegetable,
• pasture,
• clover,
• fruit,
• tree,
• seed,
• native,
• weed,
• grass,
• flower,
• species,
• veggie,
• crop,
• river,
• vine,
• forage,
• bunchgrass,
• ornamental,
• host,
• wildflower,
• planting,
• shrub,
• group,
• legume,
• antigen,