Flora of New Mexico

Yucca intermedia McKelvey is a species in the family Asparagaceae, with the common name intermediate Yucca. It is a relatively small plant forming clumps of rosettes. It is native to dry steppes, juniper-pinyon woodlands and savannahs, and desert grassland areas of the northwestern quarter of the US State of New Mexico, then into the Four Corners region, at an elevation of 1,400–2,300 m (4,600–7,500 ft).

Monarda humilis is a species of flowering plant in the mint family (Lamiaceae). It is a small, aromatic herb native to the southwestern United States, where it occurs in dry, open habitats. The species was historically treated as a variety of Monarda punctata and was elevated to species rank in the early 21st century following taxonomic revision.

Hedeoma todsenii is a rare species of flowering plant in the family Lamiaceae known by the common name Todsen's pennyroyal, or Todsen's false pennyroyal. It is endemic to New Mexico in the United States, where it occurs in the San Andres and Sacramento Mountains. It is federally listed as an endangered species of the United States. This plant was discovered on the White Sands Missile Range in 1978 by Thomas K. Todsen (1918-2010) and described to science and named for him the following year. It is a rhizomatous perennial herb growing up to 20 centimeters tall with fragrant lance-shaped leaves.

Eriogonum gypsophilum is a rare species of wild buckwheat known by the common names Seven River Hills buckwheat and gypsum wild buckwheat. It is endemic to the state of New Mexico in the United States, where it is known from only three sites in Eddy County. It is limited to a specific type of soil which is high in gypsum. The plant has been federally listed as a threatened species of the United States since 1981.

Ipomopsis sancti-spiritus is a rare species of flowering plant in the phlox family known by the common name Holy Ghost ipomopsis. It is endemic to New Mexico in the United States, where it is known from only one canyon in the Sangre de Cristo Mountains. It is a federally listed endangered species. This plant was first described in 1988, when specimens were found to differ slightly from the description of the very similar Ipomopsis aggregata. The species is known only from a two-mile (3-km) stretch of Holy Ghost Canyon in San Miguel County, northern New Mexico. Though estimates of the

Cirsium vinaceum is a rare species of thistle known by the common name Sacramento Mountains thistle. It is endemic to Otero County, New Mexico, in the United States, where it is known only from the Sacramento Mountains. The plant can be found in six canyon systems in a southern section of this mountain range spanning about 32 kilometers. It is rare because it is limited to a specific type of mountain wetland which is both naturally uncommon and threatened by a number of forces. The plant was federally listed as threatened in 1987.

Argemone pinnatisecta, known as the Sacramento prickly poppy, is an angiosperm and part of the poppy family. A very thorny looking perennial that grows up to a meter and a half in height. The thorny stems are covered in bluish green serrated leaves with spiky tips. The flower buds are also covered in these sharp thin thorns until they open, between May and August, revealing six white petals up to four centimeters long and nine centimeters wide, and a bright yellow anther with various stamens jetting out. The fruits of plant contain black seeds about two millimeters in diameter.

Physaria intermedia is a rare species of bladder pod in the cabbage family, Brassicaceae.

Mentzelia springeri is a species of flowering plant in the family Loasaceae known by the common name Santa Fe blazingstar. It is endemic to New Mexico in the United States, where it occurs in the Jemez Mountains. This perennial herb forms a mound of branching stems, giving it a bushy look. The white stems are up to 30 to 50 centimeters tall. The leaves are linear to lance-shaped, the lowest ones measuring up to 4 centimeters in length. The leaves are covered in barbed hairs that will stick to cloth. The flowers are borne at the ends of the stems. Each has 10 bright yellow glossy petals just

Aliciella formosa is a species of flowering plant in the phlox family known by the common name Aztec gilia. It is endemic to New Mexico in the United States, where it is known only from San Juan County. This perennial herb grows up to 30 centimeters tall, with several erect stems. It sometimes develops a woody base. The sharp-pointed, glandular leaves are up to 2.5 centimeters in length. The flowers are trumpet-shaped and may exceed two centimeters in length. They are pinkish purple in color and bloom in April and May. This plant is limited to the Nacimiento Formation, where it grows in salt

Penstemon metcalfei is a species of flowering plant in the plantain family known by the common name Metcalfe's beardtongue. It is endemic to New Mexico in the United States, where it occurs in the Black Range. It grows on steep canyon slopes and cliffs in remote coniferous forest habitat.

Penstemon bleaklyi, the Bleakly Penstemon, is a rare species of plant from the mountains of northern New Mexico and southern Colorado. It is one of the penstemons in the veronica family.

Oenothera organensis, the Organ Mountains evening-primrose, is a species of flowering plant in the family Onagraceae, native to a few valleys in the Organ Mountains of New Mexico. With only a few thousand individuals, it is nevertheless well-studied due to its complete self-incompatibility, which would seem to be maladaptive in such a rare species.

Ionactis elegans, the Sierra Blanca least-daisy, is a rare North American species in the family Asteraceae. It has been found only in New Mexico in the western United States.

Hymenoxys brachyactis is a species of flowering plant in the daisy family known by the common names east view rubberweed and tall bitterweed. It is native to the state of New Mexico in the southwestern United States. Hymenoxys brachyactis grows at elevations of 2,000–2,500 meters (6,600–8,200 ft) in open areas or the edges of pine forests. It is a biennial or perennial herb up to 60 cm (2.0 ft) tall. One plant can produce an array with as many as 250 small yellow flower heads, each head with 8-9 ray flowers and 25–60 disc flowers.

Heuchera pulchella, the Sandia Mountain alumroot or Sandia Mountain coral-bells, is a plant species endemic to central New Mexico, mostly in the Manzano and Sandia Mountains, but cultivated as an ornamental elsewhere. It grows in canyons and on steep mountain slopes in Torrance, Bernalillo, and Sandoval Counties at elevations of 2700–3200 m. Heuchera pulchella is an herb with a woody caudex below ground. Leaves are deeply 5-lobed, up to 2 cm long. Flowering stalks are up to 15 cm tall, with a one-sided raceme. Flowers are about 5 mm across, with red sepals and pink petals.

Erigeron subglaber is a rare North American species of flowering plants in the family Asteraceae known by the common name hairless fleabane. It has been found in the southern Rocky Mountains in the north-central part of the US state of New Mexico. Erigeron subglaber grows in meadows in subalpine conifer forests, as well as on ridges and mountain peaks at high elevations. It is a very small perennial herb rarely more than 7 cm (2.8 inches) tall, producing a taproot and a woody caudex. The inflorescence generally contains only one flower heads per stem. Each head contains 25–35 purple or

Erigeron hessii is a rare species of flowering plant in the family Asteraceae known by the common name Hess' fleabane. It is endemic to New Mexico in the United States, where it is known from two locations in the Mogollon Mountains. It is found only in the Gila Wilderness. This rhizomatous perennial herb produces hairy stems a few centimeters tall. The leaves are somewhat lance-shaped and up to 5 to 7 centimeters long. The flower heads are lined with hairy, glandular phyllaries and contain many white or lavender ray florets each up to 1.3 centimeters long. This plant grows in subalpine forest

Erigeron acomanus is a rare North American species of flowering plant in the family Asteraceae known by the common names bluewater fleabane and Acoma fleabane. It has been found only in sandstone soils in west-central New Mexico.

Brickellia chenopodina, the chenopod brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to Grant County in New Mexico.

Solidago capulinensis, known as the Capulin goldenrod is a rare plant endemic to Capulin Volcano National Monument and Las Animas County, Colorado and was first described and collected in 1936 by Theodore Dru Alison Cockerell and Darwin Maxson Andrews. The species was cultivated as an ornamental from the 1930's until the 1970's, but not found in the wild since the initial collection. As botanists only knew the plant from a single collected specimen, it was not included in any subsequent account of the New Mexico or United States flora. Academic interest in the species came after it was

Helianthus praetermissus is a rare and probably extinct North American species of sunflower, with the common names New Mexico sunflower and lost sunflower. It is known from only one specimen collected in 1851 in Cibola County in western New Mexico, and not seen since. Helianthus praetermissus is (was?) an annual herb with a slender, unbranching stem 90 cm (3 feet) tall. It has (had) a single flower head with yellow ray florets surrounding red disc florets.

Muilla lordsburgana is a species of flowering plant known by the common name Lordsburg noino. It is native to the eastern fringe of the Chihuahuan Desert of southwestern New Mexico, where it is found in scrub habitats atop Lordsburg Mesa. It is a perennial growing from a corm and reaching no more than 9 centimeters in height. The flowering stem bears an umbel-shaped array of up to 6, but usually fewer, flowers on pedicels up to 2 centimeters long. Each flower has six tepals which are white to pale lavender in color with a prominent green midvein. At the center of the flower are six stamens

Yucca × schottii is a plant species in the genus Yucca, native to southern Arizona, southwestern New Mexico, and the northern parts of Sonora and Chihuahua. The common names are Schott's yucca, hoary yucca, and mountain yucca. The "×" in the name indicates that this is a nothospecies, regarded as being a natural hybrid between two other species. In this case, Yucca × schottii is believed to have originated as a hybrid between Y. baccata and Y. madrensis. Yucca × schottii is firmly established and does reproduce freely in the wild. Yucca × schottii is called mountain yucca because it is found

Yucca campestris, the plains yucca, is a species in the family Asparagaceae, endemic to the "panhandle" region of northwestern Texas. It is considered to be endangered, mainly due to habitat loss. Yucca campestris is a low-growing species spreading by underground rhizomes and producing large colonies of rosettes. Leaves are long and narrow, up to 65 cm long but rarely more than 15 mm wide. Flowers are white and drooping. Fruit is a dry capsule with glossy black seeds. Yucca campestris grows in deep sands in very dry regions. It can be grown as an ornamental in desert regions, preferring warm

Agastache cana, more commonly known as the mosquito plant, Texas hummingbird mint, and double bubble mint, is a hardy perennial belonging to the genus Agastache (pronounced ). The genus name Agastache is derived from the Greek word meaning "a lot of", and stachy, meaning "spike", which refers to the flower's 12 terminal spikes that decorate the plant. These spikes remain through the growing season from early summer to late fall. The Mosquito Plant is native to New Mexico and western Texas, where it grows in mountainous areas at altitudes of 6,000 feet.

Sclerocactus mesae-verdae, the Mesa Verde cactus or Mesa Verde fishhook cactus, is a species of cactus native to northwestern New Mexico and southwestern Colorado. It is known only from Montezuma County (Colorado) and San Juan County (New Mexico). Much of the New Mexico part of the range lies inside land controlled by the Navajo Nation. The Colorado populations lie close to Mesa Verde National Park.

Astragalus humillimus is a rare species of milkvetch known by the common name Mancos milkvetch. It is native to a small section of the Four Corners region of the United States, where it can be found in Montezuma County, Colorado, and San Juan County, New Mexico. There are about nine small, localized populations on sandstone rimrock ledges on the mesas. The plant occurs in a region that is being developed for oil and gas exploration, and altered by associated activities such as road construction and pipeline installation. It is a federally listed endangered species. This is a small perennial

Agastache rupestris, known as the threadleaf giant hyssop, Mexican Hyssop, or licorice mint, is a wildflower of the mint family (Lamiaceae) native to the mountains of Arizona, New Mexico, and Chihuahua, Mexico. Popular in xeriscaping because of its heat tolerance and ability to thrive in dry, nutrient-poor soil, it is often planted in containers or as a border flower and used to attract hummingbirds. Displaying gray-green stems and leaves while dormant, its orange flowers with purple buds bloom from mid-summer until fall; if crushed the petals exude a pleasant scent.

Pediocactus knowltonii is a rare species of cactus known by the common names Knowlton's miniature cactus, Knowlton's pincushion cactus, and Knowlton's minute cactus.