[uhm-buh
l] 
| an inflorescence in which a number of flower stalks or pedicels, nearly equal in length, spread from a common center. |
| um·bel (ŭm'bəl) n. A flat-topped or rounded flower cluster in which the individual flower stalks arise from about the same point, as in the geranium, milkweed, onion, and chive. [New Latin umbella, from Latin, parasol, diminutive of umbra, shadow.] |