Plants — 23,046 Species
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Cenchrus clandestinus (Hochst. ex Chiov.) Morrone
Cenchrus clandestinus (Hochst. ex Chiov.) Morrone
Cenchrus clandestinus is a rhizomatous grass native to low-elevation Kenyan tropics that often naturalizes elsewhere.
Cenchrus echinatus L.
Cenchrus echinatus L.
Cenchrus echinatus L. is an annual clump-forming grass native to the Americas that is invasive in several Pacific regions.
Cenchrus longisetus M.C.Johnst.
Cenchrus longisetus M.C.Johnst.
Cenchrus longisetus, or feathertop grass, is an ornamental Poaceae species native to northeast Africa and parts of Arabia, often grown in gardens.
Cenchrus longispinus (Hack.) Fernald
Cenchrus longispinus (Hack.) Fernald
Cenchrus longispinus, the spiny burr grass, is a North American annual grass classified as a noxious weed in several introduced regions.
Cenchrus purpureus (Schumach.) Morrone
Cenchrus purpureus (Schumach.) Morrone
Cenchrus purpureus, or napier grass, is a productive perennial poaceous grass widely used as fodder and for bioenergy.
Cenchrus setaceus (Forssk.) Morrone
Cenchrus setaceus (Forssk.) Morrone
Cenchrus setaceus, or crimson fountaingrass, is a drought-tolerant ornamental perennial grass that is invasive in some introduced regions.
Cenchrus spinifex Cav.
Cenchrus spinifex Cav.
Cenchrus spinifex Cav. is a spiny bur-bearing perennial grass native to North America and the Caribbean, often a noxious weed.
Cenolophium fischeri (Spreng.) W.D.J.Koch
Cenolophium fischeri (Spreng.) W.D.J.Koch
Cenolophium denudatum, or Baltic parsley, is the only species in the Cenolophium carrot genus, a herbaceous perennial native to Europe and Asia.
Cenostigma eriostachys (Benth.) Gagnon & G.P.Lewis
Cenostigma eriostachys (Benth.) Gagnon & G.P.Lewis
Cenostigma eriostachys has a lectotype from Costa Rica's Cocos Island, designated by Lewis in 1998, and Schizolobium covilleanum (flowering material) has a type from Panama's Prov. Cocle, collected by Pittier in 1917.
Centaurea aspera L.
Centaurea aspera L.
Centaurea aspera, the rough star-thistle, is a Centaurea species native to Europe and found in New York, US.
Centaurea benedicta (L.) L.
Centaurea benedicta (L.) L.
Centaurea benedicta, or blessed thistle, is an annual thistle-like Asteraceae plant native to Eurasia, used in folk medicine and as a food flavoring.
Centaurea calcitrapa L.
Centaurea calcitrapa L.
Centaurea calcitrapa, Red Star-thistle, is a spiny flowering plant with recorded traditional food uses in parts of Europe.
Centaurea cyanus L.
Centaurea cyanus L.
Centaurea cyanus L. is an annual flowering plant with blue flowerheads, native to temperate Europe and used ornamentally and medicinally.
Centaurea diffusa Lam.
Centaurea diffusa Lam.
Centaurea diffusa Lam., or diffuse knapweed, is an annual/biennial herb native to Eastern Europe and Western Asia.
Centaurea iberica Trevis. ex Spreng.
Centaurea iberica Trevis. ex Spreng.
Centaurea iberica, or Iberian knapweed, is a Centaurea species native to southeastern Europe and southwestern Asia that is an introduced noxious weed elsewhere.
Centaurea jacea L.
Centaurea jacea L.
Centaurea jacea (brown knapweed) is a European herbaceous perennial that is invasive when introduced to North America.
Centaurea melitensis L.
Centaurea melitensis L.
Centaurea melitensis is an annual thistle-like Asteraceae plant native to the Mediterranean, now introduced to North America and Pacific islands.
Centaurea montana L.
Centaurea montana L.
Centaurea montana is an endemic European perennial flowering plant in the Asteraceae family grown ornamentally for pollinator gardens.
Centaurea nervosa Willd.
Centaurea nervosa Willd.
Centaurea nervosa Willd. is a Centaurea species native to alpine and mountain regions of several European countries.
Centaurea nigra L.
Centaurea nigra L.
Centaurea nigra is a perennial herb beneficial to native biodiversity in its range but an invasive weed elsewhere.
Centaurea nigrescens Willd.
Centaurea nigrescens Willd.
Centaurea nigrescens is a purple-flowered perennial knapweed native to Europe and an introduced noxious weed in North America and Australia.
Centaurea orientalis L.
Centaurea orientalis L.
The original material of Centaurea orientalis L. consists of Herb. Linn. No. 1030.33 at H and LINN, and an icon in Haller's 1744 work in Philos. Trans.
Centaurea scabiosa L.
Centaurea scabiosa L.
Centaurea scabiosa L. is a red-purple-flowered perennial herb native to Europe and western and northern Asia.
Centaurea solstitialis L.
Centaurea solstitialis L.
Centaurea solstitialis (yellow star-thistle) is a weedy annual herb that is invasive outside its native Eurasian range.
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