Asclepias exaltata


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Synonyms for Asclepias exaltata

milkweed of the eastern United States with leaves resembling those of pokeweed

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References in periodicals archive ?
Asclepias exaltata, Gentianella quinquefolia, and Silphium integrifolium, which were not found during the current study but had been documented previously with photography, are included in the list.
A reexamination of the pollen-donation hypothesis in an experimental population of Asclepias exaltata.
In an isolated population of the insect-pollinated milkweed, Asclepias exaltata, for example, Broyles and Wyatt (1991) found 11% pollen gene flow and a distribution of intermate distances that mimicked closely the distribution of interplant distances.
Pollination and fruit production were high in our experimental population of Asclepias exaltata.
Numbers of plants in flower, total flower number, number of flowers examined, number of fruits produced, number of fruits examined in paternity analysis, and number of effective pollinations identified for three experimental inflorescence size classes of Asclepias exaltata in 1991.
Multiple-regression analysis of inflorescence components (independent variable) on male number of effective pollinations), female (fruits matured), and total reproductive success of Asclepias exaltata in experimental populations.
These experiments demonstrated that large umbels (18 flowers) attract more pollinators and sire more seeds while producing fewer fruits per flower than small umbels (6 and 12 flowers) in Asclepias exaltata.
Asclepias exaltata is entirely self-incompatible and relies on strong-flying insects, such as bees and butterflies, to transport pollinia between plants.
To measure pollen-mediated gene flow between populations of Asclepias exaltata, we performed a paternity analysis on seeds collected from six populations in Shenandoah National Park in northern Virginia.
Number of distinct genotypes, exclusion probabilities, and isolation distances for six populations of Asclepias exaltata in Shenandoah National Park.
Levels of genetic differentiation were low among populations of Asclepias exaltata flowering plants ([G.
Levels of pollen-mediated gene flow, as estimated from the six populations of Asclepias exaltata in Shenandoah National Park, are among the highest reported for small, natural populations of herbaceous, insect-pollinated species.