cowslip vs oxeye

cowslip

noun
  • A low-growing plant, Primula veris, with yellow flowers. 

  • Primula deorum, a flowering plant known as God's cowslip and rila cowslip 

  • Primula florindae, a flowering plant known as giant cowslip and Tibetan cowslip 

  • marsh marigold, Caltha palustris, a plant in the buttercup family, growing in wet, boggy locations. 

  • Pulmonaria angustifolia, blue cowslip or narrow-leaved lungwort 

  • Primula sikkimensis, a flowering plant known as Himalayan cowslip and Sikkim cowslip 

oxeye

noun
  • Any of a genus of composite plants (Buphthalmum) with large yellow flowers. 

  • Leucanthemum vulgare 

  • A titmouse, especially the great titmouse (Parus major) or the blue titmouse (Parus caeruleus). 

  • The corn camomile (Anthemis arvensis). 

  • Heteranthemis viscidehirta 

  • Heliopsis spp. 

  • A fish Boops boops; the bogue, or box. 

  • Telekia speciosa 

  • The dunlin (Calidris alpina) 

How often have the words cowslip and oxeye occurred in a corpus of books? (source: Google Ngram Viewer )