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Anadenanthera colubrina (Vell.) Brenan var. colubrina von Reis Altschul

Mimosa colubrina Vell., Fl. Flum. 11: tab. XVI. 1790.
Piptadenia colubrina (Vell.) Benth., Hook. Jour. Bot. 4: 341. 1841.
Anadenanthera colubrina (Vell.) Brenan, Kew Bull. 2: 182. 1955
Occurs from 12 degree S. latitude to 27 degrees S. latitude in Argentina and Brazil.
von Reis Altschul 1964

Anadenanthera colubrina var. colubrina and var. cebil overlap in range.
May be distinguished from var. Cebil:
var. Colubrina is a shorter tree.
The main leaf rachis has a deeper ventral channel.
Pinnae pairs may be fewer but are longer in var. colubrina. Pinnae become noticeably shorter towards tip.
Leaflets are fewer, longer, often more linear and nitidulous above. Only the mid-vein is prominent.
See more on page 53 of Altschul 1964.

Anadenanthera colubrina (Vell.) Brenan var. Cebil (Griseb.) von Reis Altschul comb. nov.
Piptadenia macrocarpa Benth., Hook. Jour. Bot. 4: 341. 1841.
Anadenanthera macrocarpa (Benth.) Brenan, Kew Bull. 2: 182. 1955.
Piptadenia Cebil (Griseb.) Griseb., Goett. Abh. 24: 121. 1879.
Argentina, Bolivia, Brazil and Paraguay. Occurs from 0 degree latitude to 30 degrees S. latitude.
von Reis Altschul 1964

Anadenanthera peregrina (L.) Speg var. falcata (Benth.) von Reis Altschul comb. nov.
Piptadenia .falcata Benth., Hook. Jour. Bot. 4: 341. 1841.
Piptadenia peregrina (L.) var.
falcata (Benth.) Chod. & Hass., Bull. Herb. Boiss. II. 4: 561. 1904.
Anadenanthera falcata (Benth.) Speg., Physis 6: 313. 1923.
Brazil and Paraguay. Occurs from 15 degree S. latitude to 25 degrees S. latitude.
von Reis Altschul 1964.

Anadenanthera peregrina (L.) Speg. var. peregrina von Reis Altschul
Mimosa peregrina L., Sp. Pl. 520. 1753.
Piptadenia peregrina (L.) Benth., Hook. Journ. Bot., 4: 340. 1841 (1842?).
Anadenanthera peregrina (L.) Speg., Physis 6: 313. 1923.
von Reis Altschul 1964
Mimosa peregrina L. Sp. Pl., 1504. 1753 (Mimosa inermis etc. Hort. Cliff. 209. 1737. Described a European grown seedling.)
Called Acacia angico by Herndon 1853
Safford 1916
Brazil, British Guiana and Venezuela; West Indies: Grenada, Dominican Republic, Haiti, Tobago. (Puerto Rico) Occurs from 20 degrees N. latitude to 15 degrees S. latitude.
Von Reis Altschul 1964 [see also von Reis Altschul 1967a and 1972]