Plant Systems · identification + production

Read the specimen. Then diagnose the clue.

Citrus rewards careful observation: fruit shape, leaf and petiole traits, pest stages, symptom patterns, weeds and production knowledge all need different recognition habits.

Run Mixed Citrus Practice Open all reference cards Speed ID ↗

159reference cards

6study rooms

Image-firstrecognition practice

Citrus picture and sketch guides

Switch between the color chart and the sketch companion. These are broad fruit overviews; the reference library also covers the exact cultivars, rootstocks, leaves, pests, disorders, and weeds.

Open reference cards

Illustrated overview of ten citrus fruit groups, color version — AI-generated study illustration. Real specimen photographs and source-backed cultivar details remain in the identification cards.

Important identification notes

Use shape, rind, internal features, and the complete specimen together; rind color alone is not enough.

Tangerines and satsumas are mandarin types, not ten mutually exclusive botanical groups. The strong neck on this tangelo illustration represents a Minneola-type form, not every tangelo.

The chart's seed, size, and flavor descriptions are generalizations. Do not use a generic red grapefruit drawing to identify Duncan or Marsh, or a fruit picture to identify a rootstock leaf.

Check the botanical reference

Speed

Study rooms

Train one recognition problem at a time.

Each section has its own reference pool and practice route so students can build reliable clues before mixing categories together.

42 reference cards

Fruit, Leaves & Rootstocks

Fruit, leaves and rootstocks with visual separation cues.

Study room →Practice ↗

39 reference cards

Pests & Beneficials

Pests, beneficials, parasites and pathogens from the official study pool.

Study room →Practice ↗

35 reference cards

Diseases & Disorders

Diseases, disorders, deficiencies and injury patterns.

Study room →Practice ↗

27 reference cards

Weed ID

Official weed identification with whole-plant and leaf-shape recognition.

Study room →Practice ↗

137 reference cards

Photo + Sketch Atlas

Real references beside field-guide illustrations and approved supplemental sketches.

Study room →Practice ↗

16 reference cards

Written Knowledge

Production and management concepts for written practice.

Study room →Practice ↗

01Observe

Describe visible structure before naming anything.

02Separate

Compare against the closest confusing item.

03Recall

Hide the answer and prove the clue is memorable.

04Test

Move into timed or mixed practice only after recognition is stable.