Plants — 23,508 Species

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knotroot bristlegrass
Poaceae

knotroot bristlegrass

Setaria parviflora (Poir.) Kerguélen

Setaria parviflora is a perennial grass native to the Americas, found in moist and salty habitats like salt marshes.

yellow foxtail
Poaceae

yellow foxtail

Setaria pumila (Poir.) Roem. & Schult.

Setaria pumila is an annual European grass that is a widespread common weed, and can reduce dairy pasture milk production in New Zealand.

African bristlegrass
Poaceae

African bristlegrass

Setaria sphacelata (Schumach.) Stapf & C.E.Hubb. ex Moss

Setaria sphacelata is a tall African forage grass, cultivated globally, that is an environmental weed in three Australian states.

hooked bristle grass
Poaceae

hooked bristle grass

Setaria verticillata (L.) P.Beauv.

Setaria verticillata is an annual grass, native to Europe, often a noxious introduced weed, with edible seeds used in some regions.

Green Bristle Grass
Poaceae

Green Bristle Grass

Setaria viridis (L.) P.Beauv.

Setaria viridis, or green foxtail, is a grass proposed as a model for studying C4 photosynthesis in bioenergy grasses.

Yaupon Blacksenna
Orobanchaceae

Yaupon Blacksenna

Seymeria cassioides (J.F.Gmel.) S.F.Blake

Seymeria cassioides is a flowering plant found across the southeastern US Coastal Plain and disjunctly in the Bahamas, growing in wet and dry open habitats.

combleaf blacksenna
Orobanchaceae

combleaf blacksenna

Seymeria pectinata Pursh

Seymeria pectinata Pursh is a yellow-flowered plant that grows in fire-dependent sandy pine habitats of the US Southeast.

silver buffaloberry
Elaeagnaceae

silver buffaloberry

Shepherdia argentea (Pursh) Nutt.

Shepherdia argentea (silver buffaloberry) is a North American deciduous shrub with edible bitter berries, used historically by Indigenous peoples.

Canadian buffalo-berry
Elaeagnaceae

Canadian buffalo-berry

Shepherdia canadensis (L.) Nutt.

Shepherdia canadensis is a dioecious nitrogen-fixing deciduous shrub known as soapberry, native to northern North America.

Roundleaf buffaloberry
Elaeagnaceae

Roundleaf buffaloberry

Shepherdia rotundifolia Parry

Shepherdia rotundifolia, roundleaf buffaloberry, is an endemic evergreen shrub of the Colorado Plateau in the southwestern US.

Field madder
Rubiaceae

Field madder

Sherardia arvensis L.

Sherardia arvensis is an annual herbaceous weed in Rubiaceae, sometimes used to produce red dye from its roots.

Oconee bells
Diapensiaceae

Oconee bells

Shortia galacifolia Torr. & A.Gray

Shortia galacifolia is an endemic relict shade-loving flowering plant native to a small North American range, that can be cultivated further north.

creeping sibbaldia
Rosaceae

creeping sibbaldia

Sibbaldia procumbens L.

Sibbaldia procumbens is an Arctic-alpine rose-family flowering perennial herb found across many northern and mountain regions worldwide.

three-toothed cinquefoil
Rosaceae

three-toothed cinquefoil

Sibbaldia tridentata (Aiton) Paule & Soják

Sibbaldia tridentata is a small evergreen perennial flowering plant native to eastern North America and Greenland.

Fork-leaved Cinquefoil
Rosaceae

Fork-leaved Cinquefoil

Sibbaldianthe bifurca (L.) Kurtto & T.Erikss.

Sibbaldianthe bifurca is a small flowering plant with yellow flowers that fruits and flowers from May to October.

Oneseed Bur Cucumber
Cucurbitaceae

Oneseed Bur Cucumber

Sicyos angulatus L.

Sicyos angulatus L. is an annual climbing vine native to central North America with documented edible and medicinal uses.

Spinyhead Sida
Malvaceae

Spinyhead Sida

Sida acuta Burm.fil.

Common wireweed (Sida acuta) is a pantropical flowering mallow that is invasive in northern Australia.

flannel weed
Malvaceae

flannel weed

Sida cordifolia L.

Sida cordifolia L. is a medicinal weedy perennial herb that contains ephedrine with psychostimulant effects.

yellow ʻilima
Malvaceae

yellow ʻilima

Sida fallax Walp.

Sida fallax Walp., or ʻilima, is a variable tropical shrub with a long history of traditional and modern uses including lei making.

Cuban jute
Malvaceae

Cuban jute

Sida rhombifolia L.

Sida rhombifolia L., arrowleaf sida, is a widespread tropical plant grown for fiber and used in traditional medicine.

prickly fanpetals
Malvaceae

prickly fanpetals

Sida spinosa L.

Sida spinosa (prickly fanpetals) is a widespread Malvaceae flowering plant native to seasonally dry tropical and subtropical regions.

prairie mallow
Malvaceae

prairie mallow

Sidalcea candida A.Gray

Sidalcea candida, white checkerbloom, is a North American wildflower with five-petaled white flowers, blooming June to September.

fringed checkerbloom
Malvaceae

fringed checkerbloom

Sidalcea diploscypha (Torr. & A.Gray) A.Gray ex Benth.

Sidalcea diploscypha is an annual bristly herb with pink fringed petals that grows 40 to 60 cm tall.

Waxy Checkerbloom
Malvaceae

Waxy Checkerbloom

Sidalcea glaucescens Greene.

Sidalcea glaucescens is a perennial herb native to California and western Nevada, growing in mountain forest meadows and blooming June to August.

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