Female Resource Allocation in Response to Pollen Availability in Plants from Freshwater and Salt Marsh Populations of Amaranthus cannabinus

The Biology of Invasive Alien Plants in Canada. 3. Amaranthus tuberculatus (Moq.) Sauer var. rudis (Sauer) Costea & Tardif

“…The stigmas are covered with 2-4 rows of receptive hairs (Costea et al 2001c). Stigmas of unfertilized female flowers can persist indefinitely until pollen reaches them, consistent with observations on another dioecious species, A. cannabinus (Quinn et al 2000). After fertilization, the stigmas dry out.…”

An experimental study of the pollination biology of the perennial halophyte Frankenia pauciflora var. gunnii (Frankeniaceae) in a South Australian salt marsh

“…This appears to be the first such demonstration for an entomophilous plant species in a saltmarsh habitat or for any member of the Frankeniaceae. Quinn et al (2000), however, demonstrated that biomass allocation by female plants of the wind-pollinated Amaranthus cannabinus from salt marshes was strongly affected by pollen availability, and Bertness and Shumway (1992) reported that predation on flowers of anemophilous grasses (Distichlis and Spartina spp.) in salt marshes on Rhode Island was followed by dramatically reduced seed production.…”