Plantae > Tracheophyta > Magnoliopsida > Caryophyllales > Polygonaceae > Persicaria > Persicaria sagittata

Persicaria sagittata (arrowleaf knotweed; arrowleaf tearthumb; arrowvine; arrow-leaf tearthumb)

Synonyms:

Wikipedia Abstract

Persicaria sagittata, common names American tearthumb, arrowleaf tearthumb, or arrowvine, is a plant species widespread in the eastern half of North America as well as in eastern Asia. It has been found in every state and province from Texas to Manitoba to Newfoundland to Florida, plus Colorado and Oregon. It also grows in China, the Russian Far East, Siberia, Korea, Japan, northern India and Mongolia. It grows in moist areas along lake shores, stream banks, etc.
View Wikipedia Record: Persicaria sagittata

Attributes

Allergen Potential [1]  Medium-High
Screening - Summer [2]  Porous
Screening - Winter [2]  Porous
Bloom Period [2]  Late Spring
Drought Tolerance [2]  Low
Fire Tolerance [2]  Low
Flower Type [3]  Hermaphrodite
Frost Free Days [2]  3 months 20 days
Fruit/Seed Abundance [2]  Medium
Fruit/Seed Begin [2]  Spring
Fruit/Seed End [2]  Fall
Growth Form [2]  Single Crown
Growth Period [2]  Summer
Growth Rate [2]  Rapid
Hazards [3]  Although no specific mention has been made for this species, there have been reports that some members of this genus can cause photosensitivity in susceptible people. Many species also contain oxalic acid (the distinctive lemony flavour of sorrel) - whilst not toxic this substance can bind up other minerals making them unavailable to the body and leading to mineral deficiency. Having said that, a number of common foods such as sorrel and rhubarb contain oxalic acid and the leaves of most members of this genus are nutritious and beneficial to eat in moderate quantities. Cooking the leaves will reduce their content of oxalic acid. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition;
Leaf Type [2]  Deciduous
Lifespan [3]  Annual
Pollinators [3]  Insects, Lepidoptera
Propagation [2]  Seed
Root Depth [2]  6 inches (15 cm)
Seed Spread Rate [2]  Moderate
Seed Vigor [2]  Medium
Seeds Per [2]  125000 / lb (275578 / kg)
Shape/Orientation [2]  Prostrate
Structure [4]  Herb
Vegetative Spread Rate [2]  None
Flower Color [2]  Red
Foliage Color [2]  Green
Fruit Color [2]  Black
Height [3]  24 inches (0.6 m)
Hardiness Zone Minimum [2]  USDA Zone: 5 Low Temperature: -20 F° (-28.9 C°) → -10 F° (-23.3 C°)
Light Preference [2]  Full Sun
Soil Acidity [2]  Neutral
Soil Fertility [2]  Intermediate
Water Use [2]  Moderate
View Plants For A Future Record : Persicaria sagittata

Protected Areas

Providers

Pollinated by 
Apis cerana (Asiatic honey bee)[5]
Epistrophe shibakawae[6]
Lucilia caesar (Greenbottle Blow Fly)[5]
Petaphora maritima[5]
Rhinodia rostraria[5]

External References

USDA Plant Profile

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ 2USDA Plants Database, U. S. Department of Agriculture
♦ 3Plants For A Future licensed under a Creative Commons Attribution 4.0 License
♦ 4Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 6Kato, M., T. Makutani, T. Inoue, and T. Itino. 1990. Insect-flower relationship in the primary beech forest of Ashu, Kyoto: an overview of the flowering phenology and seasonal pattern of insect visits. Contr. Biol. Lab. Kyoto Univ. 27:309-375.
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0