HELP ANSWER RESEARCH QUESTIONS
HELP ANSWER RESEARCH QUESTIONS (Generated by OIPC Assessment Team ) - Revised August 2018
OIPC is collaborating in an effort to assess invasive plants in Ohio. During that process, the Assessment Team has encountered a number of important information gaps. Filling these gaps will lead to a better understanding of the invasive potential of particular species. We encourage researchers, land managers, and any interested persons across the state to help us address these issues.
Goutweed - Aegopodium podagraria
Amur Corktree - Phellodendron amurense
Vinca, Periwinkle - Vinca minor
English Ivy - Headera helix
Porcelainberry - Ampelopsis brevipedunculata
Oriental Bittersweet - Celastrus orbiculatus
White Mulberry - Morus alba
Common Privet - Ligustrum vulgare
Princess tree, Empress tree - Paulownia tomentosa
Winged Burning Bush - Euonymous alatus
Wineberry - Rubus phoenicolasius
OIPC is collaborating in an effort to assess invasive plants in Ohio. During that process, the Assessment Team has encountered a number of important information gaps. Filling these gaps will lead to a better understanding of the invasive potential of particular species. We encourage researchers, land managers, and any interested persons across the state to help us address these issues.
Goutweed - Aegopodium podagraria
- What is the flowering period, seed production, and method/distance of seed dispersal of goutweed in Ohio?
Amur Corktree - Phellodendron amurense
- At what age does this tree begins reproducing in Ohio? Note that it has been reported to be "male" for years before one or more branches may suddenly begin producing fruit.
- What is the seed dispersal of this species? Note that fruits may be bird-dispersed but extracted seeds have an wing-like appendage that opens up as the seed dries (T. Culley, pers. obs.).
- Species is likely underreported in Ohio - please record location (GPS, etc.)
Vinca, Periwinkle - Vinca minor
- What is the dispersal distance of vinca seeds? NOTE: Fruit production may be rare in this species.
English Ivy - Headera helix
- Is there evidence of this species appearing as seedlings within natural sites (i.e., as propagules away from a site of a previous planting)?
- Once the species is in a natural site, what is the extent of its colonization?
- Are there any known impacts of this species on native plants or animals in Ohio?
Porcelainberry - Ampelopsis brevipedunculata
- What is the typical population density of this species in Ohio?
- What role in succession, if any, does porcelainberry play in Ohio?
Oriental Bittersweet - Celastrus orbiculatus
- What is the average number of seeds per plant under natural conditions in Ohio?
- What is the role of oriental bittersweet, if any, in succession - especially in Ohio?
White Mulberry - Morus alba
- When do individual plants reach reproductive maturity?
- What is the average density and percent coverage of this species in Ohio?
- What is the role of this species in succession in natural areas in Ohio?
Common Privet - Ligustrum vulgare
- What is the role of this species (if any) in establishing in healthy and intact natural areas in Ohio?
- Does common privet impact successional processes in any way?
- Does the species impact animals or native plants in any way in Ohio?
Princess tree, Empress tree - Paulownia tomentosa
- What is the extent of spread of this tree in Ohio? [Locality/GPS coordinates as well as herbarium specimens to document occurrence are needed.]
Winged Burning Bush - Euonymous alatus
- What is the identity of individuals/populations of escaped individuals – are these the wild species, cultivars (such as 'Compactus'), or hybrid mixes? [Need genetic study of this species, comparing escaped populations with those in cultivation]
- What is the average seed production of E. alatus in the wild?
- Does this species impact (negatively or positively) any animals in Ohio?
Wineberry - Rubus phoenicolasius
- Does wineberry have any negetative effects on native plant or animal species in Ohio?