Dichromanthus michuacanus (Lex.) Salazar & Soto Arenas

Michuacan Lady Orchid

Facts About

Accepted Synonyms: Schiedeella michuacana, Spiranthes michuacana, Stenorrhynchos michuacanum

Dichromanthus michuacanus, the Michuacan Lady Orchid, was discovered in the mountains of Michoacan, Mexico. Widely distributed in Mexico, this orchid just crosses the border into the mountains of Arizona and Texas. The inflorescence has up to 30 tubular flowers, usually facing the same direction, south to southwest. These pale green flowers have dark green stripes on the sepals, petals and lip and are covered with fine hairs. Even without flowers, this orchid is easy to identify with its broad, pale green leaves that are unique among plants in its desert habitat. This orchid can be found growing on flat terrain or hillsides within alligator juniper woodlands.

Dichromanthus michuacanus is apparently secure throughout its range, although its conservation status has not been determined in Texas, and in Arizona where it may be threatened by cattle grazing.


The large, fragrant and colorful flowers of this orchid are thought to be pollinated by bumble bees or carpenter bees.

Ecosystem Type

Stream bank, woodlands


Leaf arrangement:
Number of leaves on stem:
  • three
  • four
Form of the labellum:
the labellum is not pouch-like
Main color of labellum:
  • green to brown
  • other
  • white
Nectar spur:
Inflorescence type:
the inflorescence is a raceme
Labellum length:
Up to 70 mm
Sepal length:
Up to 17 mm
Plant height:
13–80 cm
Show All Characteristics

Native to North America


North American Conservation Status & Distribution

Conservation Status

Select a location to view conservation status:

Conservation and Wetland Status
Global Rank Apparently Secure
US Status N/A
Canadian Status N/A

North America Distribution

Adapted from USDA data