buttonweed

buttonweed

English

Etymology

button +‎ weed

Noun

buttonweed (plural buttonweeds)

1. Any of several plants of the genera Diodia and Diodella, of the madder family.
2. Spermacoce, false buttonweeds.
3. Arbutilon theophrasti, velvetleaf, Indian mallow
4. Centaurea spp., certain knapweeds
5. Oldenlandia uniflora, clustered bluet

Derived terms

• false buttonweed (Spermacoce)
• rough buttonweed (Diodia redula, Diodia teres)
• seaside buttonweed (Diodia serrulata)
• stiff buttonweed (Diodia apiculata)
• slender buttonweed (Diodia ocymifolia)
• tropical buttonweed (Diodia sarmentosa)
• Virginia buttonweed (Diodia virginiana)

References

• Diodia on Wikipedia.Wikipedia
• List_of_Rubiaceae_genera#D on Wikipedia.Wikipedia
• Spermacoce on Wikipedia.Wikipedia
• Arbutilon thephrasti on Wikipedia.Wikipedia

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for buttonweed in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)