Toxic flowers = bunga beracun

Calla (bog arum, marsh calla, wild calla, squaw claw, and water-arum[2]) is a genus of flowering plant in the family Araceae, containing the single species Calla palustris. It is native to cool temperate regions of the Northern Hemisphere, in central, eastern and northern Europe (France and Norway eastward), northern Asia and northern North America (Alaska, Canada, and northeastern contiguous United States).[1][3][4][5]



Calla



Conservation status



Secure (NatureServe)

Scientific classification

Kingdom: Plantae

(unranked): Angiosperms

(unranked): Monocots

Order: Alismatales

Family: Araceae

Subfamily: Calloideae

Genus: Calla

L.

Species: C. palustris

Binomial name

Calla palustris

L.

Synonyms[1]

Callaria Raf.

Aroides Heist. ex Fabr.

Provenzalia Adans.

Callaion Raf.

Callaion palustris (L.) Raf.

Provenzalia palustris (L.) Raf.

Calla ovatifolia Gilib.

Calla cordifolia Stokes

Callaion bispatha (Raf.) Raf.

Callaion brevis (Raf.) Raf.

Callaion heterophylla (Raf.) Raf.

Provenzalia bispatha Raf.

Provenzalia brevis Raf.

Provenzalia heterophyla Raf.

Dracunculus paludosus Montandon

Calla generalis E.H.L.Krause

Calla brevis (Raf.) Á.Löve & D.Löve



Flora von Deutschland, Österreich und der Schweiz 1885

It is a rhizomatous herbaceous perennial plant growing in bogs and ponds. The leaves are rounded to heart-shaped, 6–12 centimetres (2.4–4.7 in) long on a 10–20 centimetres (3.9–7.9 in) petiole, and 4–12 centimetres (1.6–4.7 in) broad. The greenish-yellow inflorescence is produced on a spadix about 4–6 centimetres (1.6–2.4 in) long, enclosed in a white spathe. The fruit is a cluster of red berries, each berry containing several seeds.[6][7]



The plant is very poisonous when fresh due to its high oxalic acid content, but the rhizome (like that of Caladium, Colocasia, and Arum) is edible after drying, grinding, leaching and boiling.[8][9][10]



The genus formerly also included a number of other species, which have now been transferred to the separate genus Zantedeschia. These plants, from tropical Africa are, however, still often termed "calla lilies", but should not be confused with C. palustris.