Sub-floral

In some flowers, such as Convolvulus, Anemone, &c., the exact nature of the sub-floral leaves is uncertain, 110. it is open to doubt whether the organs in question are bracts or leaves pertaining to the inflorescence, or whether they are really parts of the flower.

Source: wiktionary

In Malope Irifida, for example, the three parts of the epicalyx represent a sub-floral bract with its two stipules ; in Kitaibelia viti/olia, the six-parted epicalyx consists (according to Payer) of two such sub-floral leaves with their four stipules.

Source: wiktionary

Pax (1385) had considered Ascolepis as possessing a pair of sub-floral bractlets fused dorsally.

Source: wiktionary

A combination of the 'agroinfection' maize streak construct and their sub-floral injection technique might enable one to take the transformation to seed.

Source: wiktionary