''Echinopsis macrogona'', syn. ''Trichocereus macrogonus'', is a species of
cactus
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek ...
found in Bolivia.
Description
It has a
shrub
A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
by habit, with erect columnar stems around tall and in diameter. The stem is bluish green with 6–9 prominent ribs. The gray colored areoles have yellow-brown spines; there are 1–3 longer central spines, up to long, and 6–9 shorter radial spines, up to long. Large white flowers, up to long, are borne at the top of the stems.
[, p. 272]
References
macrogona
Flora of Bolivia
Cacti of South America
{{Cactus-stub