Pacific Island Ecosystems at Risk (PIER)
Episcia dianthiflora
RISK ASSESSMENT RESULTS: Low risk, score: -2
Australian/New Zealand Weed Risk Assessment adapted for Hawai‘i. Information on Risk Assessments Original risk assessment |
Episcia dianthiflora H.E.Moore & R.G.Wilson Family - Gesneriaceae. Common Names(s) - Lace flower vine. Synonym(s) - Alsobia dianthiflora H.E. Moore & R.G. Wilson. |
Answer |
Score |
||
1.01 |
Is the species highly domesticated? |
y=-3, n=0 |
n |
0 |
1.02 |
Has the species become naturalized where grown? |
y=1, n=-1 |
||
1.03 |
Does the species have weedy races? |
y=-1, n=-1 |
||
2.01 |
Species suited to tropical or subtropical climate(s) (0-low; 1-intermediate; 2-high) – If island is primarily wet habitat, then substitute “wet tropical” for “tropical or subtropical” |
See Append 2 |
2 |
|
2.02 |
Quality of climate match data (0-low; 1-intermediate; 2-high) see appendix 2 |
2 |
||
2.03 |
Broad climate suitability (environmental versatility) |
y=1, n=0 |
n |
0 |
2.04 |
Native or naturalized in regions with tropical or subtropical climates |
y=1, n=0 |
y |
1 |
2.05 |
Does the species have a history of repeated introductions outside its natural range? |
y=-2, ?=-1, n=0 |
n |
|
3.01 |
Naturalized beyond native range y = 1*multiplier (see Append 2), n= question 2.05 |
n |
0 |
|
3.02 |
Garden/amenity/disturbance weed y = 1*multiplier (see Append 2) |
n=0 |
n |
0 |
3.03 |
Agricultural/forestry/horticultural weed y = 2*multiplier (see Append 2) |
n=0 |
n |
0 |
3.04 |
Environmental weed y = 2*multiplier (see Append 2) |
n=0 |
n |
0 |
3.05 |
Congeneric weed y = 1*multiplier (see Append 2) |
n=0 |
||
4.01 |
Produces spines, thorns or burrs |
y=1, n=0 |
n |
0 |
4.02 |
Allelopathic |
y=1, n=0 |
||
4.03 |
Parasitic |
y=1, n=0 |
n |
0 |
4.04 |
Unpalatable to grazing animals |
y=1, n=-1 |
||
4.05 |
Toxic to animals |
y=1, n=0 |
||
4.06 |
Host for recognized pests and pathogens |
y=1, n=0 |
||
4.07 |
Causes allergies or is otherwise toxic to humans |
y=1, n=0 |
||
4.08 |
Creates a fire hazard in natural ecosystems |
y=1, n=0 |
n |
0 |
4.09 |
Is a shade tolerant plant at some stage of its life cycle |
y=1, n=0 |
y |
1 |
4.10 |
Tolerates a wide range of soil conditions (or limestone conditions if not a volcanic island) |
y=1, n=0 |
n |
0 |
4.11 |
Climbing or smothering growth habit |
y=1, n=0 |
n |
0 |
4.12 |
Forms dense thickets |
y=1, n=0 |
n |
0 |
5.01 |
Aquatic |
y=5, n=0 |
n |
0 |
5.02 |
Grass |
y=1, n=0 |
n |
0 |
5.03 |
Nitrogen fixing woody plant |
y=1, n=0 |
n |
0 |
5.04 |
Geophyte (herbaceous with underground storage organs -- bulbs, corms, or tubers) |
y=1, n=0 |
n |
0 |
6.01 |
Evidence of substantial reproductive failure in native habitat |
y=1, n=0 |
n |
0 |
6.02 |
Produces viable seed. |
y=1, n=-1 |
||
6.03 |
Hybridizes naturally |
y=1, n=-1 |
||
6.04 |
Self-compatible or apomictic |
y=1, n=-1 |
n |
-1 |
6.05 |
Requires specialist pollinators |
y=-1, n=0 |
y |
-1 |
6.06 |
Reproduction by vegetative fragmentation |
y=1, n=-1 |
y |
1 |
6.07 |
Minimum generative time (years) 1 year = 1, 2 or 3 years = 0, 4+ years = -1 |
See left |
||
7.01 |
Propagules likely to be dispersed unintentionally (plants growing in heavily trafficked areas) |
y=1, n=-1 |
n |
-1 |
7.02 |
Propagules dispersed intentionally by people |
y=1, n=-1 |
y |
1 |
7.03 |
Propagules likely to disperse as a produce contaminant |
y=1, n=-1 |
n |
-1 |
7.04 |
Propagules adapted to wind dispersal |
y=1, n=-1 |
n |
-1 |
7.05 |
Propagules water dispersed |
y=1, n=-1 |
n |
-1 |
7.06 |
Propagules bird dispersed |
y=1, n=-1 |
y |
1 |
7.07 |
Propagules dispersed by other animals (externally) |
y=1, n=-1 |
n |
-1 |
7.08 |
Propagules survive passage through the gut |
y=1, n=-1 |
y |
1 |
8.01 |
Prolific seed production (>1000/m2) |
y=1, n=-1 |
n |
-1 |
8.02 |
Evidence that a persistent propagule bank is formed (>1 yr) |
y=1, n=-1 |
||
8.03 |
Well controlled by herbicides |
y=-1, n=1 |
||
8.04 |
Tolerates, or benefits from, mutilation, cultivation, or fire |
y=1, n=-1 |
||
8.05 |
Effective natural enemies present locally (e.g. introduced biocontrol agents) |
y=-1, n=1 |
||
Total score: |
-2 |
Supporting data:
Notes |
Source |
|
1.01 |
(1)No evidence |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
1.02 |
||
1.03 |
||
2.01 |
(1)South Mexico and Costa Rica. |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
2.02 |
(1)South Mexico and Costa Rica. |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
2.03 |
(1)Average or above average warmth in summer. Keep fairy
cool in winter - minimum temperature 60 F. Bright light - avoid direct
sunshine. (2)Hardiness: |
(1)http://www.gflora.com/index.php?cmd=genus_body&genus_id=133 [Accessed 15 Dec 2008] (2)http://davesgarden.com/guides/pf/go/573/ [Accessed 15 Dec 2008] (3)Llamas, K.A. 2003. Tropical Flowering Plants. A Guide to Identification and Cultivation. Timber Press. Portland, OR. |
2.04 |
(1)South Mexico and Costa Rica. |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
2.05 |
(1)an attractive plant for a hanging basket [many web based references also refer to this as a house plant, and do not mention it growing outdoors]. (2)This hanging plant from Costa Rica would undoubtedly be very popular if it were not so difficult to cultivate. |
(1)Phelan, J. 2002. The Successful Conservatory: And Growing Exotic Plants. Sterling Publishing Company, Inc. East Sussex, UK. (2)Vermeulen, N. and R. Rosenfeld . 1999. Encyclopedia of House Plants. Taylor & Francis. London, UK. |
3.01 |
(1)No evidence |
(1)http://www.hear.org/gcw/scientificnames/scinamee.htm [Accessed 15 Dec 2008] |
3.02 |
(1)No evidence |
(1)http://www.hear.org/gcw/scientificnames/scinamee.htm [Accessed 15 Dec 2008] |
3.03 |
(1)No evidence |
(1)http://www.hear.org/gcw/scientificnames/scinamee.htm [Accessed 15 Dec 2008] |
3.04 |
(1)No evidence |
(1)http://www.hear.org/gcw/scientificnames/scinamee.htm [Accessed 15 Dec 2008] |
3.05 |
(1)Episcia reptans and E. cupreata listed as weeds [no other evidence of impacts or control] |
(1)http://www.hear.org/gcw/scientificnames/scinamee.htm [Accessed 15 Dec 2008] |
4.01 |
(1)No evidence |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
4.02 |
Unknown |
|
4.03 |
(1)No evidence |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
4.04 |
Unknown |
|
4.05 |
Unknown |
|
4.06 |
Unknown |
|
4.07 |
Unknown |
|
4.08 |
(1)Growth form and habit unlikely to increase fire hazard |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
4.09 |
(1)Sun Exposure: Sun to Partial Shade (2)For a balanced development, it is best to position the Episcia dianthiflora in a partially shady place, where it can enjoy direct sunlight only during the coolest hours of the day. (3)Episcias need bright filtered light to bloom but will burn in direct sunlight. |
(1)http://davesgarden.com/guides/pf/go/573/ [Accessed 15 Dec 2008] (2)http://www.gardening.eu/plants/Apartment-Plants/Episcia-dianthiflora/1749/stamp.asp [Accessed 15 Dec 2008] (3)Llamas, K.A. 2003. Tropical Flowering Plants. A Guide to Identification and Cultivation. Timber Press. Portland, OR. |
4.10 |
(1)Soil pH requirements: 6.1 to 6.5 (mildly acidic) |
|
4.11 |
(1)Stems 20-60 cm, creeping and rooting, producing densely pilose green stolons. [can be epiphytic, but no evidence that plants smother other vegetation] |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
4.12 |
(1)No evidence |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
5.01 |
(1)Terrestrial |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
5.02 |
(1)Gesneriaceae |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
5.03 |
(1)Gesneriaceae |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
5.04 |
(1)Stems 20-60 cm, creeping and rooting, producing densely pilose green stolons. (2)Genus of 6 species of creeping, stoloniferous, mat-forming, epiphytic or terrestrial, evergreen perennials found in tropical forest and rocky habitats from Mexico to South America...The trailing stems grow about 1,5 ft long - with the Lace Flower (Episcia dianthiflora) the small leaves are borne in groups along thread-like runners. Both bloom throughout the summer and the runners root in surrounding compost, forming plantlets for propagation. |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. (2)http://www.gflora.com/index.php?cmd=genus_body&genus_id=133 [Accessed 15 Dec 2008] |
6.01 |
(1)No evidence |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. |
6.02 |
(1)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed, but wild material does] |
(1)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
6.03 |
(1)Hybrids of A. dianthiflora and punctata exhibit white fimbriated flowers with purple spots in the throat and on the lobes. [unknown if natural hybrids are formed] |
(1)http://www.greenculturesg.com/articles/aug06/aug06_alsobia.htm [Accessed 15 Dec 2008] |
6.04 |
(1)With few exceptions, the flowers of Gesneriaceae are cross-pollinated and animal-pollinated (zoophilous), with insects (mainly bees), birds and bats acting as pollen vectors…Except for a few chiropterophilous species of Gesneria with protogynous flowers, cross-pollination is promoted or enforced by protandry. |
(1)Kubitzki, K., K.U . Kramer, P.S. Green , J. G. Rohwer, V. Bittrich, H. Huber , J. W. Kadereit and C. Jeffrey. 2004. The Families and Genera of Vascular Plants. Volume VII. Flowering Plants - Dicotyledons. Lamiales (except Acanthaceae including Avicenniaceae). Springer-Verlag, Berlin. |
6.05 |
(1)pollinated by female euglossine bees. (2)Corolla with fimbriate limb, gynandro-euglossophilous [pollinated by euglossine bees] |
(1)Endress, P.K. and B. Steiner-Gafner. 1996. Diversity and Evolutionary Biology of Tropical Flowers. Cambridge University Press. Cambridge, UK. (2)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. |
6.06 |
(1)Stems 20-60 cm, creeping and rooting, producing densely pilose green stolons. (2)Genus of 6 species of creeping, stoloniferous, mat-forming, epiphytic or terrestrial, evergreen perennials found in tropical forest and rocky habitats from Mexico to South America...The trailing stems grow about 1,5 ft long - with the Lace Flower (Episcia dianthiflora) the small leaves are borne in groups along thread-like runners. Both bloom throughout the summer and the runners root in surrounding compost, forming plantlets for propagation. |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. (2)http://www.gflora.com/index.php?cmd=genus_body&genus_id=133 [Accessed 15 Dec 2008] |
6.07 |
Unknown |
|
7.01 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description...no means of external attachment] (2)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed, but wild material does] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. (2)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
7.02 |
(1)an attractive plant for a hanging basket. It can also be grown as ground cover between tall plants. |
(1)Phelan, J. 2002. The Successful Conservatory: And Growing Exotic Plants. Sterling Publishing Company, Inc. East Sussex, UK. |
7.03 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description] (2)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed and no evidence that plant is grown with any produce] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. (2)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
7.04 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description] (2)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed, but wild material does] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. (2)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
7.05 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description] (2)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed, but wild material does] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. (2)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
7.06 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description…although seeds rarely formed in cultivation] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. |
7.07 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description...no means of external attachment] (2)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed, but wild material does] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. (2)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
7.08 |
(1)Fruit an ovoid, bivalved fleshy capsule [genus description] (2)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed [cultivated material rarely produces seed, but wild material does] |
(1)Kadereit, J.W. 2004. Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae). Springer. Berlin, Germany. (2)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
8.01 |
(1)N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed |
(1)http://davesgarden.com/guides/pf/go/103222/ [Accessed 15 Dec 2008] |
8.02 |
Unknown |
|
8.03 |
Unknown |
|
8.04 |
(1)Stems 20-60 cm, creeping and rooting, producing densely pilose green stolons [pieces of plant could probably root if cut up, but no evidence from natural settings] (2)Genus of 6 species of creeping, stoloniferous, mat-forming, epiphytic or terrestrial, evergreen perennials found in tropical forest and rocky habitats from Mexico to South America...The trailing stems grow about 1,5 ft long - with the Lace Flower (Episcia dianthiflora) the small leaves are borne in groups along thread-like runners. Both bloom throughout the summer and the runners root in surrounding compost, forming plantlets for propagation. |
(1)Eggli, U. 2002. Dicotyledons. Springer-Verlag. Berlin, Germany. (2)http://www.gflora.com/index.php?cmd=genus_body&genus_id=133 [Accessed 15 Dec 2008] |
8.05 |
Unknown |
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