Jump to content

Erythrostemon mexicanus

From Wikipedia, the free encyclopedia
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Erythrostemon mexicanus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Genus: Erythrostemon
Species:
E. mexicanus
Binomial name
Erythrostemon mexicanus
(A.Gray 1861) E. Gagnon & G. P. Lewis 2016
Natural range
Synonyms[1]
  • Caesalpinia mexicana A.Gray 1861
  • Poinciana mexicana
    (A.Gray) Rose 1911
  • Poincianella mexicana
    (A.Gray) Britton & Rose 1930

Erythrostemon mexicanus, formerly Caesalpinia mexicana,[2] is a species of plant in the genus Erythrostemon, within the pea family, Fabaceae. Common names include Mexican holdback,[3] Mexican caesalpinia, and tabachín del monte.[4] It is native to the extreme lower Rio Grande Valley of Texas[5] and to parts of Mexico: in the northeast and further south along the Gulf coast as well as the Pacific coast in Nayarit, Jalisco, Colima, and a small portion of Sinaloa.[6]

Description

Mexican holdback is a small evergreen tree or large shrub, reaching a height of 3–4.6 m (9.8–15.1 ft) and a spread of 1.8–3 m (5.9–9.8 ft). Leaves are bipinnately-compound and dark green.[7] Each leaf has five to nine pinnae 4–9 cm (1.6–3.5 in) in length.[8] Pinnae are composed of four to five leaflets[7] that are 1–2.5 cm (0.39–0.98 in) long and 0.7–1.3 cm (0.28–0.51 in) wide.[8] Yellow, slightly fragrant flowers are produced on 7.6–15.2 cm (3.0–6.0 in) terminal spikes[7] of 10 to 30.[4] Blooming takes place from February to July, often continuing to October. The fruit is a dehiscent tan or yellow seedpod 5.1–7.6 cm (2.0–3.0 in) in length.[7]

Uses

Mexican holdback is cultivated as an ornamental because of its showy flowers, lush,[4] fine-textured foliage, and drought tolerance.[9]

Ecology

Erythrostemon mexicanus is the host plant for the caterpillars of the curve-winged metalmark (Emesis emesia).[10]

References

  1. ^ "Caesalpinia mexicana A. Gray". TROPICOS. Missouri Botanical Garden. Retrieved 2009-11-25.
  2. ^ "Erythrostemon mexicanus (Rose) Gagnon & G.P.Lewis". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 10 November 2022.
  3. ^ "Caesalpinia mexicana A. Gray Mexican holdback". PLANTS Database. United States Department of Agriculture. Retrieved 2009-12-03.
  4. ^ a b c Nokes, Jill (2001). How to Grow Native Plants of Texas and the Southwest (2 ed.). University of Texas Press. pp. 151–152. ISBN 978-0-292-75573-4.
  5. ^ "Mexican Caesalpinia, Mexican Poinciana". Benny Simpson's Texas Native Trees. Texas A&M University. Retrieved 2009-01-28.
  6. ^ Little Jr., Elbert L. (1976). "Map 27, Caesalpinia mexicana". Atlas of United States Trees. Vol. 3 (Minor Western Hardwoods). US Government Printing Office. LCCN 79-653298. OCLC 4053799.
  7. ^ a b c d Irish, Mary (2008). Trees and Shrubs for the Southwest: Woody Plants for Arid Gardens. Timber Press. pp. 141–142. ISBN 978-0-88192-905-8.
  8. ^ a b Richardson, Alfred (1995). Plants of the Rio Grande Delta. University of Texas Press. pp. 103–104. ISBN 978-0-292-77070-6.
  9. ^ Gilman, Edward F (October 1999). "Caesalpinia mexicana Mexican Caesalpinia" (PDF). IFAS Extension. University of Florida. Retrieved 2010-11-23.
  10. ^ "Curve-winged Metalmark Emesis emesia (Hewitson, 1867)". Butterflies and Moths of North America. Retrieved 2009-11-29.

External links