Bract
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In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in s
Papery (upper) and leafy bracts on Rhinanthus minor (hay rattle). All the "leaves" in this image are bracts.
The yellow bracts of Castilleja levisecta press tight against the stem.
The bracts of Bougainvillea glabra, differ in colour from leaves and attract pollinators.
Bracts along a banana flower stalk surround rows of flowers
Asteraceae
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Asteraceae is a large family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the order Asterales. The number of species in Asteraceae is rivaled only by the
Bract
…collectively called an involucre. An involucre is a common feature beneath the inflorescences of many families, including the Apiaceae (carrot family), Asteraceae (sunflower or the daisy family), Dipsacaceae, and Polygonaceae. Each flower in an inflorescence may have its own whorl of bracts, in this case called…
Asteracea poster 3
A typical Asteraceae flower head, showing the (five) individual ray florets and the (approximately 16) disk florets of Bidens torta specimen
Discoid flowerheads of Delairea odorata
Dandelions on an alpine slope in Switzerland