Teagueia jostii is easily
recognized. The large plants bear several arched inflorescences
20-30 cm long, each producing many successive flowers,
often two or three open at once. The lateral sepals
are connate for less than half their length, and are
widely spread and slightly reflexed, but the small petals
are strongly reflexed a short distance from their base.
The flower color is yellow to tan with purple stripes
on the sepals and a purple-flushed lip. The lip orifice
is usually dark purple. The sheaths usually have bright
purple warts. The leaves are smooth-surfaced.
Teagueia jostii is one of the most common
species of Teagueia on Cerro Mayordomo between
3100m and 3300 m. Another form of the species, larger
and more robust and with a callus on each petal, is
abundant on Cerro Añangu. I am tentatively lumping
them because of their overall similarity, but future
research may show these to be distinct species. If I
can find populations of both of them growing together
without intergrading, that would decide the issue.
The Cerro Añangu form is so common
in places that it forms a loose tangled mat, with hundreds
of half meter long plants sprawlng over the ground in
such numbers that it is impossible not to step on them.
They grow intermixed with other Teagueia species
but usually outnumber the others.