Plantae > Tracheophyta > Magnoliopsida > Fagales > Betulaceae > Ostrya > Ostrya knowltonii

Ostrya knowltonii (Knowlton's hophornbeam)

Synonyms: Ostrya chisosensis; Ostrya knowltonii chisosensis; Ostrya knowltonii var. chisosensis; Ostrya virginiana var. chisosensis

Wikipedia Abstract

Ostrya chisosensis, common name "Big Bend hop-hornbeam" or "Chisos hop-hornbeam," is a plant species endemic to Texas. It is known only from the Chisos Mountains inside Big Bend National Park, in Brewster County, although related populations in northern Chihuahua have not been studied in detail and may be the same species. It grows along streambanks and on the walls of canyons. Ostrya chisosensis is a tree up to 12 m tall. Bark splits into narrow vertical strips. Leaves broadly elliptic to lanceolate, lacking glandular hairs. Staminate (male) catkins are 3.5–5 cm long.
View Wikipedia Record: Ostrya knowltonii

Endangered Species

Status: Critically Endangered
View IUCN Record: Ostrya knowltonii

Attributes

Air Quality Improvement [1]  Low
Allergen Potential [1]  Medium-High
Carbon Capture [1]  Medium-Low
Shade Percentage [1]  82 %
Temperature Reduction [1]  Medium
Wind Reduction [1]  Medium-Low
Leaf Type [2]  Deciduous
Lifespan [3]  Perennial
Structure [2]  Tree
Height [1]  43 feet (13 m)
Width [1]  33 feet (10.1 m)
Hardiness Zone Minimum [1]  USDA Zone: 5 Low Temperature: -20 F° (-28.9 C°) → -10 F° (-23.3 C°)
Hardiness Zone Maximum [1]  USDA Zone: 9 Low Temperature: 20 F° (-6.7 C°) → 30 F° (-1.1 C°)
Water Use [1]  High

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Canyonlands National Park II 335430 Utah, United States
Carlsbad Caverns National Park II 15448 New Mexico, United States
Glen Canyon National Recreation Area V 1087901 Arizona, Utah, United States
Grand Canyon National Park II 1210128 Arizona, United States

Range Map

External References

USDA Plant Profile

NatureServe Explorer

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1i-Tree Species v. 4.0, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database.
♦ 2Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 3USDA Plants Database, U. S. Department of Agriculture
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0