Argemone mexicana L.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Loreto Mun.

• Locality

  "Ilha de Balsas" region, between the Balsas & Parnaíba Rivers. At main house of Fazenda "Morros", ca. 35 km south of LORÊTO.

• Elevation

  Alt. 300 m. (984 ft.)

• Coordinates

  -7.38, -45.07

• Location Notes

  [South America]

• Distribution

  Map all specimens of this taxon

Flora of Brazil
STATE OF MARAHHSO
Argemone mexicana L.
(det.L.B.Smith & D.H*Nicolson,1966)
Municipio de Loreto: "Ilha de Balsas11 region, be-
tween the Balsas & Pamaiba Rivers* At main house
of Fazenda ^orros11, ca. 35 km south of LORfiTO.
Ca. 7*2345%'W. Alt. ca. 300 m.
Main vegetation types of region: (l)wchapadanf decid-
uous to evergreen xeromorphic tree woodland (ncerra-
dao”) on tops & sides of sandstone plateaus & some
low flat land; (2) "tabuleiro11, deciduous low-tree
woodland (another type of ncerradaow) on upper parts
of rolling terrain; (3)"mata", closed, deciduous to
evergreen forest, in galleries; U>)ncaatlngan, open
deciduous forest on lower parts of rolling terrain;
(5)"varjao", scattered deciduous forest-type trees
on low flat land; ^"cocal", dense babagu palm
groves on Pamafba River terrace & some brook val-
leys. Dry season 4-5 months with almost no rain;
brooks intermittent. Annual fires & cattle grazing
in all areas. Some spots with dense secondary cha-
pada scrub ("carrasco"); much tabuleiro cleared to
form grassy pasture; much mata, caatinga & varjao
in shifting cultivation.
This habitat: weeds along corral fence.
21 June 1962
This n&: Herb to l/2 m. tall. Flowers 4-5 cm diam.
Petals pale yellow, filaments yellow, anthers light
orange, ovary light green, style purplish-red. Plant
with bright yellow latex.
leg. George Si ten & Liene T, Eiten, nc 4869
Distributed by the Institute» d* Betlnica, SI* Paulo (plant 2)
02711468