Status:
valid
Authors:
Meisn.
Source:
tro
Year:
1856
Citation Micro:
Prodr. 14: 101 (1856)
WFO Identifier:
wfo-0001101047
Common Names
- Polygonum polygaloides
- Milkweed Knotweed
- Milkweed Smartweed
Description
Polygonum polygaloides (also called Milkweed Knotweed, among many other common names) is an annual herbaceous plant that grows up to 4 feet tall. It is native to North America and is commonly found in moist, open areas such as meadows, fields, and roadsides. It has small, white flowers and lance-shaped leaves.
Uses & Benefits
Polygonum polygaloides is used as an ornamental plant in gardens and as a ground cover. It is also used to stabilize soil and prevent erosion. The plant is drought tolerant and can be used in xeriscaping. The plant has a high tolerance for salt, making it suitable for planting in coastal areas.
Cultivars, Varieties & Sub-species
Polygonum polygaloides sub. kelloggii (Greene) J.C.Hickman
Polygonum polygaloides sub. confertiflorum (Nutt. ex Piper) J.C.Hickman
Polygonum polygaloides sub. esotericum (L.C.Wheeler) J.C.Hickman
Flower, Seeds and Seedlings
Polygonum polygaloides has small, yellow flowers and small, dark brown seeds. The seedlings have long, narrow leaves and a single stem.
Where to Find Polygonum polygaloides
Polygonum polygaloides can be found in the western United States, from California to Montana.
Species in the Polygonum genus
Polygonum icaricum,
Polygonum idaeum,
Polygonum albanicum,
Polygonum arenarium,
Polygonum arenastrum,
Polygonum acetosum,
Polygonum salsugineum,
Polygonum scoparium,
Polygonum tenoreanum,
Polygonum perfoliatum,
Polygonum plebeium,
Polygonum romanum,
Polygonum rurivagum,
Polygonum ramosissimum,
Polygonum douglasii,
Polygonum floribundum,
Polygonum equisetiforme,
Polygonum filicaule,
Polygonum bellardii,
Polygonum boreale,
Polygonum aviculare,
Polygonum cognatum,
Polygonum careyi,
Polygonum maritimum,
Polygonum patulum,
Polygonum papillosum,
Polygonum oxyspermum,
Polygonum glaucum,
Polygonum gussonei,
Polygonum longiocreatum,
Polygonum longipes,
Polygonum istanbulicum,
Polygonum americanum,
Polygonum basiramium,
Polygonum parksii,
Polygonum angustifolium,
Polygonum coriarium,
Polygonum divaricatum,
Polygonum dshawachischwilii,
Polygonum erectum,
Polygonum hissaricum,
Polygonum humifusum,
Polygonum jurii,
Polygonum panjutinii,
Polygonum thunbergii,
Polygonum tripterocarpum,
Polygonum weyrichii,
Polygonum brittingeri,
Polygonum lacerum,
Polygonum paraguayense,
Species in the Polygonaceae family
Acanthoscyphus parishii,
Afrobrunnichia africana,
Afrobrunnichia erecta,
Antigonon flavescens,
Antigonon guatimalense,
Antigonon leptopus,
Aristocapsa insignis,
Atraphaxis intricata,
Atraphaxis angustifolia,
Atraphaxis aucheri,
Atraphaxis avenia,
Atraphaxis badghysi,
Atraphaxis billardieri,
Atraphaxis bracteata,
Atraphaxis canescens,
Atraphaxis caucasica,
Atraphaxis compacta,
Atraphaxis daghestanica,
Atraphaxis decipiens,
Atraphaxis frutescens,
Atraphaxis grandiflora,
Atraphaxis irtyschensis,
Atraphaxis karataviensis,
Atraphaxis kopetdagensis,
Atraphaxis laetevirens,
Atraphaxis macrocarpa,
Atraphaxis manshurica,
Atraphaxis muschketowii,
Atraphaxis pungens,
Atraphaxis pyrifolia,
Atraphaxis rodinii,
Atraphaxis seravschanica,
Atraphaxis spinosa,
Atraphaxis suaedifolia,
Atraphaxis teretifolia,
Atraphaxis virgata,
Atraphaxis arianum,
Atraphaxis atraphaxiforme,
Atraphaxis toktogulicum,
Brunnichia ovata,
Calligonum acanthopterum,
Calligonum aciferum,
Calligonum aculeatum,
Calligonum aequilaterale,
Calligonum alaschanicum,
Calligonum alatiforme,
Calligonum alatum,
Calligonum amoenum,
Calligonum androssowii,
Calligonum aphyllum,