Fishhook Cactus (Sclerocactus parviflorus)

Fishhook Cactus (Sclerocactus parviflorus)

Fishhook Cactus (Sclerocactus parviflorus), Cactus Family (Cactaceae), native, S3 vulnerable in Colorado. Found in open, dry places, on clay, shale, or adobe hillsides, and often with pinyon-juniper sin the simi-desert shrublands of the western slope. Blooms from...
Ute’s Ladies Tresses Orchid (Spiranthes diluvialis)

Ute’s Ladies Tresses Orchid (Spiranthes diluvialis)

Ute’s Ladies Tresses Orchid (Spiranthes diluvialis), Orchid Family (Orchidaceae). Native and G2S2, imperiled in Colorado and globally. It was federally listed in 1992 when it was only thought to be in Colorado, but since then has been found in several western...
Yellowspine Thistle (Cirsium ochrocentrum)

Yellowspine Thistle (Cirsium ochrocentrum)

Yellowspine Thistle (Cirsium ochrocentrum), Aster Family (Asteraceae). Native and common in dry soild of theastern plains, along roadsides, and on dry, open slopes from plains and semi-desert shrublands to montane on the eastern and western slopes. Blooms from June...
Gray’s Draba (Draba grayana)

Gray’s Draba (Draba grayana)

Gray’s Draba (Draba grayana), Mustard Family (Brassicaceae). Native and G2 S2 Imperiled globally and endemic in Colorado. There are 30 documented occurrences, 12 of which have not been seen in over 20 years. Primary threats are non-motorized human activity. This...
Egg Yolk Lichen (Candelariella rosulans)

Egg Yolk Lichen (Candelariella rosulans)

Egg Yolk Lichen (Candelariella rosulans) in the Candelariaceae family, can be a bit variable in appearance, ranging from rosulate to lobate to squamulose but almost always distinguishable from other Candelariella species by its thick, convex thallus and broad spores....