Persicaria maculosa Gray
lady's-thumb
Polygonaceae (Buckwheat family)
Introduction to Vascular Plants
lady's-thumb
Polygonaceae (Buckwheat family)
Introduction to Vascular Plants
.jpg){kind=link}
Species Information
General:
Annual herb from a taproot; stems prostrate to erect, solitary, simple or branched, 30-100 cm tall.
Leaves:
Basal leaves lacking; stem leaves alternate, lanceolate, the blades 3-10 cm long, smooth to appressed hairy, usually with a purplish spot near midlength, the stalks short, thick; stipules cylindric-conic, 5-15 mm long, entire, appressed hairy, fringed with bristly hairs at the tips.
Flowers:
Inflorescence of many flowers in crowded, cylindric, compound racemes; perianths pink or purplish, rarely white, 1.5-3.5 mm long, 5-lobed nearly to the base.
Fruits:
Achenes, 3-angled or lens-shaped, 2-3 mm long, egg-shaped to roundish, nearly black, smooth, shiny.
Notes:
Sometimes difficult to separate from P. hydropiperoides.
Ecology
Ecological Framework for Persicaria maculosa
The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
| Site Information |
Value / Class |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
837 | 350 | 1126 |
| Slope
Gradient (%) |
0 | 0 | 0 |
|
Aspect (degrees) |
0 | ||
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
7 | 7 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
3 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(1), IDF(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to dry roadsides, ditches, fields and waste places in the lowland, steppe and montane zones; common in SW BC, infrequent in SC and SE BC, rare northward along the coast; introduced from Eurasia.Status Information
| Origin Status | Provincial Status | BC List (Red Blue List) | COSEWIC |
|---|---|---|---|
| Exotic | SNA (2019) | Exotic | Not Listed |
BC Ministry of Environment: BC Species and Ecosystems Explorer.
Synonyms
Synonyms and Alternate Names:
Persicaria maculata (Raf.) S.F. Gray
Polygonum persicaria L.