perfoliate การใช้

• Its gills are arranged around the anus and its rhinophores are perfoliate.
• The plant is evergreen in perfoliate, joined at the base in a complete ring round the shoot.
• The latter has similar large perfoliate leaves, but the flowers have orange-coloured bumps on the petals.
• Its head bears perfoliate orange rhinophores and a pair of oral tentacles which have an orange band in their midsection.
• Perfoliate pondweed is less threatened than other broadleaved pondweeds, but it is listed as Vulnerable in Spain and the Netherlands and Endangered in Flanders.
• Waterbirds, fish, water beetles and caddis larvae can all be important grazers of perfoliate pondweed, reducing its biomass or even eliminating it locally.
• Over much of its range, perfoliate pondweed is unlikely to be confused with any other pondweed species except perhaps " P . praelongus ".
• Common water-crowfoot, chara species, Canadian waterweed, slender spike-rush, perfoliate pondweed and spiked water milfoil are the other main species present.
• The site supports the nationally rare perfoliate pennycress and other rare plant life such as Curtis'mouse-ear, early gentian, field fleawort and burnt orchid.
• ""'Uvularia perfoliata " "'( known by the common name "'perfoliate bellwort "') is a perennial forb native to the eastern United States and Canada, which produces pale yellow flowers in spring.