From the Wikipedia page 
- Choppy contains many leaves of various sizes.
- Fannings: are small particles of tea leaves used almost exclusively in tea bags.
- Flowery: consists of large leaves, typically plucked in the second or third flush with an abundance of tips.
- Golden Flowery: includes very young tips or buds (usually golden in colour) that were picked early in the season.
- Tippy: includes an abundance of tips.
Whole leaf gradesEdit
The grades for whole leaf orthodox black tea are: Ceylon orange pekoe (OP) grades'
- OP1—slightly delicate, long, wiry leaf with the light liquor
- OPA—bold, long leaf tea which ranges from tightly wound to almost open
- OP—main grade, in the middle between OP1 and OPA, can consist of long wiry leaf without tips
- OP Superior—primarily from Indonesia, similar to OP
- Flowery OP—high-quality tea with a long leaf and few tips, considered the second grade in Assam, Dooars, and Bangladesh teas, but the first grade in China
- F OP1—as above, but with only the highest quality leaves in the FOP classification
- Golden Flowery OP1—higher proportion of tip than FOP top grade in Milima and Marinyn regions, uncommon in Assam and Darjeeling
- Tippy Golden F OP—the highest proportion of tip, main grade in Darjeeling and Assam
- TGF OP1—as above, but with only the highest quality leaves in the TGFOP classification
- Finest TGF OP—highest quality grade (Note: "Special" is occasionally substituted for "Finest", with a number 1 at the end to indicate the very finest), often hand processed and produced at only the best plantations, roughly one quarter tips
- SFTGFOP—sometimes used to indicate the very finest
Broken leaf gradesEdit
- BT—Broken Tea: Usually a black, open, fleshy leaf that is very bulky. Classification used in Sumatra, Ceylon(Sri Lanka), and some parts of Southern India.
- BP—Broken Pekoe: Most common broken pekoe grade. From Indonesia, Ceylon(Sri Lanka), Assam and Southern India.
- BPS—Broken Pekoe Souchong: Term for broken pekoe in Assam and Darjeeling.
- FP—Flowery Pekoe: High-quality pekoe. Usually coarser with a fleshier, broken leaf. Produced in Ceylon(Sri Lanka) and Southern India, as well as in some parts of Kenya.
- BOP—Broken Orange Pekoe: Main broken grade. Prevalent in Assam, Ceylon(Sri Lanka), Southern India, Java, and China.
- F BOP—Flowery Broken Orange Pekoe: Coarser and broken with some tips. From Assam, Ceylon(Sri Lanka), Indonesia, China, and Bangladesh. In South America coarser, black broken.
- F BOP F—Finest Broken Orange Pekoe Flowery: The finest broken orange pekoe. Higher proportion of tips. Mainly from Ceylon's "low districts".
- G BOP—Golden Broken Orange Pekoe: Second grade tea with uneven leaves and few tips.
- GF BOP1—Golden Flowery Broken Orange Pekoe 1: As above, but with only the highest quality leaves in the GFBOP classification.
- TGF BOP1—Tippy Golden Flowery Broken Orange Pekoe 1: High-quality leaves with a high proportion of tips. Finest broken First Grade Leaves in Darjeeling and some parts of Assam.
- PF—Pekoe Fannings
- OF—Orange Fannings: From Northern India and some parts of Africa and South America.
- FOF—Flowery Orange Fannings: Common in Assam, Dooars, and Bangladesh. Some leaf sizes come close to the smaller broken grades.
- GFOF—Golden Flowery Orange Fannings: Finest grade in Darjeeling for tea bag production.
- TGFOF—Tippy Golden Flowery Orange Fannings.
- BOPF—Broken Orange Pekoe Fannings: Main grade in Sri Lanka, Indonesia, Southern India, Kenya, Mozambique, Bangladesh, and China. Black-leaf tea with few added ingredients, uniform particle size, and no tips.
- D1—Dust 1: From Sri Lanka, Indonesia, China, Africa, South America, and Southern India.
- PD—Pekoe Dust
- PD1—Pekoe Dust 1: Mainly produced in India.
- Ch.—China varietal
- Qu.—Queen jat
- FBOPF Ex. Spl.—Flowery Broken Orange Pekoe Fannings (Extra Special)
- FP—(Flowery Pekoe)
- PS—Pekoe Souchong
- BOF—Broken Orange Fannings
- BPF—Broken Pekoe Fannings
- RD—Pekoe Dust/Red Dust
- FD—Fine Dust
- GD—Golden Dust
- SRD—Super Red Dust
- SFD—Super Fine Dust
- BMF—Broken Mixed Fannings