Robinia neomexicana — Details

New Mexico Locust learn more about names for this taxon

Overview

Distribution

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Robinia neomexicana A. Gray:
Mexico (Mesoamerica)
United States (North America)
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Robinia rusbyi Wooton & Standl.:
Mexico (Mesoamerica)
United States (North America)
  • SPECIMEN BASED RECORD. Published protolog data.   http://www.tropicos.org/Reference/9990002 External link.
  • Cronquist, A., A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren. 1989. Vascular Plants of the Intermountain West, U.S.A., FABALES. 3B: 1–279. In A. J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermount. Fl. Hafner Pub. Co., New York.   http://www.tropicos.org/Reference/35722 External link.
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Robinia neomexicana var. luxurians Dieck:
United States (North America)
  • Turner, B. L. 1959. The Legumes of Texas Univ. of Texas Press, Austin. 284 pp.   http://www.tropicos.org/Reference/68 External link.
  • Cronquist, A., A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren. 1989. Vascular Plants of the Intermountain West, U.S.A., FABALES. 3B: 1–279. In A. J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermount. Fl. Hafner Pub. Co., New York.   http://www.tropicos.org/Reference/35722 External link.
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National Distribution

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United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Physical Description

Morphology

Physical Description

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Perennial, Trees, Shrubs, Woody throughout, Stems woody below, or from woody crown or caudex, Plants with rhizomes or suckers, Nodules present, Stems erect or ascending, Stems 1-2 m tall, Stems greater than 2 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules setiform, subulate or acicular, Stipules persistent, Stipules free, Stipules spinose or bristles, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Stipels present at base of leaflets, Leaflets 5-9, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence axillary, Inflorescence or flowers lax, declined or pendulous, Flowers zygomorphic, Calyx 2-lipped or 2-lobed, Calyx gland-dotted or with glandular spot, Calyx hairy, Petals separate, Corolla papilionaceous, Petals pinkish to rose, Petals blue, lavander to purple, or violet, Banner petal suborbicular, broadly rounded, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style hairy, Style hairy on one side only, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit exserted from calyx, Fruit hairy, Fruit gland-dotted or with gland-tipped hairs, Fruit 3-10 seeded, Seeds reniform, Seed surface smooth, Seeds olive, brown, or black.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Type Information

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Isotype for Robinia subvelutina Rydb.
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): L. N. Goodding
Year Collected: 1912
Locality: Bisbee, Natanes plateau., Cochise, Arizona, United States, North America
  • Isotype: Rydberg, P. A. 1924. N. Amer. Fl. 24: 227.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Robinia neomexicana

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Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Species: 1
Species With Barcodes: 1

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Conservation

Conservation Status

National NatureServe Conservation Status

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United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

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Rounded Global Status Rank: G4 - Apparently Secure

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Wikipedia

New Mexican locust

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Robinia neomexicana, the New Mexican Locust, New Mexico, Southwest, Desert, Pink, or Rose Locust), is a shrub or small tree in the subfamily Faboideae of the pea family Fabaceae.

Contents

Distribution

Robinia neomexicana is native to the southwestern United States (southeastern California and southwestern Utah, Virgin River region,[1] east through Arizona and New Mexico, the Rio Grande valley, to far west Texas) and adjoining northern Mexico; from central New Mexico the range extends north into Colorado, mostly the eastern foothills of the Rocky Mountains. In Arizona it ranges across the Arizona transition zone, the Mogollon Rim and White Mountains and into western and southwestern New Mexico.[2].

In California it is uncommon below 1500 m (5000 ft) in canyons in the Mojave Desert and its sky island pinyon-juniper habitats (Pinus monophylla and Juniperus californica).[3] Farther east, it is typically found between 1200 and 2600 meters (4000 and 8500 feet) along streams, in the bottoms of valleys, and on the sides of canyons.[4]

Description

Robinia neomexicana grows to 5–10 m tall (rarely to 15 m) with bristly shoots. The leaves are 10–15 cm long, pinnate with 7–15 leaflets; they have a pair of sharp, reddish-brown thorns at the base. The flowers are showy and white or pink, produced in spring or early summer in dense racemes 5–10 cm long that hang from the branches near the ends.[3][4] The fruits are brown bean-like pods with bristles like those on the shoots.[4]

Uses

In New Mexico, Pueblo Native Americans traditionally ate the flowers uncooked.

Mule deer, cattle, and goats browse the plant foliage. Squirrels and quail eat the locust's seeds.[4]

References

  1. ^ Little. Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Little, Elbert L, 1976, US Government Printing Office. Library of Congress No. 79-653298. Map 162, Robinia neomexicana.
  2. ^ Little. Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Map 162, Robinia neomexicana.
  3. ^ a b "Jepson Manual Treatment". University of California. 1993. http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?3691,4198,4199. Retrieved 2008-06-18. 
  4. ^ a b c d Elmore, Francis H. (1976). Trees and Shrubs of the Southwest Uplands. Western National Parks Association. p. 134. ISBN 0-911408-41-X. 
  • Little. Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Little, Elbert L, 1976, US Government Printing Office. Library of Congress No. 79-653298. Map 162, Robinia neomexicana.
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