Alisma subcordatum

 
southern water plantain - Alisma subcordatum 08JL14-1
 
southern water plantain - Alisma subcordatum 08JL14-3

characteristics

Green leaf stems emerge from bulb like corms. Ribbon-like leaves — often submerged — may go unnoticed as they tend to quickly decay. Flower stem is many branched; producing numerous panicles rising well above the foliage. A tiny white to yellow flower appears at the end of each of the branches. Seeds are in a dense ring. Reseeds readily; spreads quickly.

T SSN H W sun soil H2O fire N2 pH summer fall flower (seed)
P W 1.2 0.3 S F-M-C MW ••• - 5.0-7.0 green (red) maroon white

habitat

Marshes, ponds, lakes, streams, ditches.

uses

Waterfowl and other birds eat the seeds.

North American aboriginals used this plant to make poultices for wounds and swelling.

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common > name = have on site
T = type: A = annual | B = biennial | P = perennial | SS = subshrub | D = deciduous | C = coniferous
██ = cold stratify | ██ = cold stratify & scarify | ██ = plant directly | ██ = scarify | ██ = not from seed
SSN = season: C = cool | W = warm | Y = late
H = height (in metres) | W = width (in metres) | B = bunch | S = sod | SB = sod/bunch
sun: S = full sun | S/PS = sun or partial shade | PS = partial shade | SH = full shade
soil: F = fine | M = medium | C = coarse
H2O = moisture requirement: D = dry | M = moist | W = wet | Z = aquatic
fire = fire tolerance: - = unknown | X = none | = some | •• = moderate | ••• = high tolerance
N2 = nitrogen fixing: = yes
summer = foliage colour | fall = foliage (stem) colour | flower (seed) = flower (seed / fruit) colour, if conspicuous
pH = acidity - alkalinity