Burke: Lemna aequinoctialis vs. Lemna turionifera

	Lemna aequinoctialis	Lemna turionifera
		turion duckweed
Habit		Floating aquatic perennials forming colonies, lanceolate-ovate body 1-4 mm long, flat and barely gibbous, margins entire, often reddish below with coloring beginning where root is attached, sometimes red-spotted on upper surface; turions sometimes present; stipes small, white, usually decaying; roots less than 15 cm, tip generally rounded, sheath not winged.
Leaves		None
Flowers		Plants rarely found in flower, reproducing vegetatively; flowers 1-2 per body, surrounded by utricular scale with narrow opening at apex; stamens 2, 4-chambered, ovaries 1, containing 1 ovule, tapering into style, stigma funnel-shaped.
Fruits		Fruit a follicle, 0.5-0.6 mm, not winged, opening by bursting; seeds 1-5, with 30-60 indistinct ribs.

	Lemna aequinoctialis	Lemna turionifera
Flowering time		June-October
Habitat		In standing or slow-moving fresh water.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across much of North America to the Atlantic Coast; also in Eurasia. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Not of concern
Sibling taxa	L. minor, L. minuta, L. trisulca, L. turionifera	L. minor, L. minuta, L. trisulca
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Lemna aequinoctialis

Lemna turionifera

turion duckweed

Habit

Floating aquatic perennials forming colonies, lanceolate-ovate body 1-4 mm long, flat and barely gibbous, margins entire, often reddish below with coloring beginning where root is attached, sometimes red-spotted on upper surface; turions sometimes present; stipes small, white, usually decaying; roots less than 15 cm, tip generally rounded, sheath not winged.

Leaves

None

Flowers

Plants rarely found in flower, reproducing vegetatively;

flowers 1-2 per body, surrounded by utricular scale with narrow opening at apex;

stamens 2, 4-chambered, ovaries 1, containing 1 ovule, tapering into style, stigma funnel-shaped.

Fruits

Fruit a follicle, 0.5-0.6 mm, not winged, opening by bursting;

seeds 1-5, with 30-60 indistinct ribs.

Lemna aequinoctialis

Lemna turionifera

Flowering time

June-October

Habitat

In standing or slow-moving fresh water.

Distribution

[WildflowerSearch map]

[BONAP county map]

Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across much of North America to the Atlantic Coast; also in Eurasia.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa

L. minor, L. minuta, L. trisulca, L. turionifera

L. minor, L. minuta, L. trisulca

Web links