involucre in a sentence

Examples

1. The ovary is sessile and included in the involucre.
2. Head involucres are campanulate to cylindric or attenuate.
3. The involucre changes from greenish-white to dull brown as the fruit matures.
4. The genus is native in southern Europe, southwest and eastern Asia, and involucre.
5. The involucres are hemispheric to bell shaped.
6. The involucre are campanulate shaped and 5 6 mm wide, composed of five flowers.
7. The flowers are held in a bowl-shaped involucre of bracts with toothed edges.
8. From the involucre bloom about 8 golden ray florets around a center of hairless disc florets.
9. The involucre of the flower head is covered by hairy scales ending with a single grooved thorn.
10. It arises in clusters from the dorsal surface of the thallus each surrounded at the base a tubular involucre.