''Delphinium robustum'' is a species of flowering plant in the

buttercup family Ranunculaceae (buttercup or crowfoot family; Latin "little frog", from "frog") is a family of over 2,000 known species of flowering plants in 43 genera, distributed worldwide. The largest genera are ''Ranunculus'' (600 species), ''Delphinium' ...

known by the common names Wahatoya Creek larkspur and robust larkspur. It is native to

Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...

and

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...

in the United States.''Delphinium robustum''.
NatureServe.Beatty, B. L., W. F. Jennings, and R. C. Rawlinson (2004, July 26)
''Delphinium robustum'' Rydb. (Wahatoya Creek larkspur): A technical conservation assessment.
nline USDA Forest Service, Rocky Mountain Region. This species is a

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

herb In general use, herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal ...

with stems growing up to about 2 meters tall, or sometimes taller.''Delphinium robustum''.
Flora of North America. It is known to exceed 3 meters tall at times. The stems are hairless, waxy, and sometimes red in color near the base. The leaves have rounded lobed blades borne on long petioles. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is a

raceme A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...

that sometimes branches, becoming a

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

. It can contain up to 180 flowers. The flower has blue, purple-blue, lavender, or sometimes pink

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s. The petals have sparse yellow or white hairs. The fruit is between 1 and 2 centimeters long. Flowering occurs in July through September. This plant grows in riparian woodlands and subalpine meadows. It can be found in canyon bottoms,

aspen Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section ''Populus'', of the ''Populus'' genus. Species These species are called aspens: *'' Populus adenopoda'' – Chinese aspen (China ...

groves, and open woods. Threats to this species are not clear because little is known about the plant. There are a number of potential threats, including road-related disturbances such as motorized vehicles, erosion, and road construction.

References

{{Taxonbar, from=Q12222113 robustum Flora of Colorado Flora of New Mexico