| Quercus x robusta | |
| Author | C.H.Muller 1934 Torreya 34: 119 |
| Synonyms | emoryi x gravesii |
| Local names | Chisos mountains oak |
| Range | Texas (Chisos Mountains, in wet canyons), to 1500 m; |
| Growth habit | reaches 13 m; |
| Leaves | oval, 6-12 cm long, 2-5cm wide, apex pointed, base subcordate, toothed or rarely entire, glabrous on both sides; 8 vein pairs; petiole 1-2cm long, pubescent; |
| Flowers | |
| Fruits | acorn maturing in 2 years, 1-2cm long, enclosed for 1/4 or 1/3 of length in cup with pointed, appressed scales; |
|
Bark, twigs and |
bark dark and furrowed; twigs dark brown, slender; |
| Hardiness zone, habitat | |
| Miscellaneous | -- A.
Camus : n° 428; -- For C.H. Muller, and for Govaerts & Frodin (1998), it's a true species (fixed hybrid); |
| Subspecies and varieties |
|
| Pictures |
|
