Well developed and strong means that the main and lateral stems are firm, fibrous, and pliable; not distinctly immature or spindly or threadlike at time of packing.
Code of Federal Regulations
[36 FR 9126, May 20, 1971. Redesignated at 42 FR 32514, June 27, 1977, and further redesignated at 46 FR 63203, Dec. 31, 1981. Redesignated at 56 FR 15802, Apr. 18, 1991]