[ground-suh
l] 
| any composite plant of the genus Senecio, esp. S. vulgaris, a common weed having clusters of small yellow disk flowers without rays. |
[ground-sil] | the lowermost sill of a framed structure, esp. one lying close to the ground. |
| ground·sel 1 (ground'səl, groun'-) n. Any of various plants of the genus Senecio, having rayed, usually yellow flower heads. [Middle English groundeswille, from Old English grundeswylige, alteration (influenced by grund, ground) of gundeswilge : gund, pus + swelgan, to swallow (from its use in reducing abscesses); see swel- in Indo-European roots.] |
| ground·sel 2 (ground'səl, groun'-) n. Variant of groundsill. |
| ground·sill (ground'sĭl') n. The horizontal timber nearest the ground in the frame of a building. |
groundsel
any of about 1,200 species of annual, biennial, and perennial herbs, shrubs, trees, and climbers constituting the genus Senecio of the family Asteraceae, distributed throughout the world. Some species are cultivated as border plants or houseplants, and many species contain alkaloids that are poisonous to grazing animals
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