Bletia arizonica (S.Watson) Sosa & M.W.Chase 2020
This species was first described as Corallorhiza arizonica by Watson (1882). The type specimens were found in rocky places on the Santa Rita Mountains, Arizona in USA. The perianth is very slightly gibbose and the lip has 5 prominent ridges down the centre and is 3-lobed above. Catling & Engel (1993) proposed that this species is a variety of Hexalectris spicata and dicussed the possibility of it being a hybrid of H. spicata and H. nitida. Kennedy & Watson (2010) found in their phylogenetic study, that it is a distinct species and proposed Hexalectris arizonica. Hexalectris arizonica clustered with H. colemanii and was quite distinct from H. spicata (today both: Bletia) (Kennedy & Watson 2010). Sosa & Chase (2020, not available in Germany) proposed translocations of Hexalectris species to Bletia. The stem of B. arizonica is pinkish red to white and reaches up to 70 cm. The flowers are variable from yellow-tan to purple-brown. It is growing in organic mesic to dry soil on limestone or sandstone, in juniper, pine and oak woodlands. Today it has been recorded from North Mexico and Southern States of USA (Efloras 2021, POWO 2021).