Question 1

How does the spaced repetition system work?

Accepted Answer

Plant Reference tracks every plant you study across 5 mastery levels. When you answer correctly, the plant advances; when you struggle, it gets scheduled for review sooner. This scientifically-proven method ensures you focus your study time on the plants that need the most attention.

Question 2

What makes each quiz format different?

Accepted Answer

Flashcards are self-paced visual learning with multiple photos per plant. Multiple Choice tests recognition with four answer choices, great for exam prep. Plant Parts builds nomenclature by assembling genus and species separately. Writing Test is the deepest recall — typing names from memory. Glossary Quiz covers professional terminology. Name Game makes learning fun with fast-paced matching mini-games.

Question 3

Can I study just the plants I need for my exam?

Accepted Answer

Yes — the filter sidebar lets you narrow your study set by category, family, hardiness zone, native region, and dozens of other plant characteristics. You can also create custom plant sets, follow educational institution collections, or filter to just your favorites.

Question 4

Do I need an account to use the study tools?

Accepted Answer

No — all 6 quiz formats work immediately without signing up. Creating a free account adds progress tracking, spaced repetition scheduling, badges, XP, study streaks, and the ability to save favorites and custom plant sets.

Question 5

How are the plant photos sourced?

Accepted Answer

Every plant in the database includes real photographs showing the plant from multiple angles and in different seasons. Photos are curated to help you identify plants in real-world settings, not just studio conditions.

Study plant identification

Study plant identification