General data | Classifications | List of species | Local names | Back to home page |
Quercus paxtalensis | |
Author |
C.H.Muller 1942 Misc. Publ. U.S. Dept. Agric. 477: 75 Diagnosis here |
Synonyms | |
Local names | |
Range | Mexico (Chiapas,
Hidalgo, Oaxaca, Tamaulipas, Veracruz); |
Growth habit | 7-20 m tall
; |
Leaves |
8-16 x 2.8-5 cm; subcoriaceous; lanceolate to narrowly elliptic, sometimes oblong, often asymmetrical at base; apex acute to acuminate, bristle-tipped; base cuneate or truncate; margin flat, with 7-11 pairs of aristate teeth; adaxially lustrous, hairless; abaxially less lustrous, glabrous or seldom with stipitate, fascicled trichomes at veins axils; 9-13 veins pairs, straight, ending in the teeth, weakly raised or not at all above, prominent beneath; epidermis slightly papillose or smooth; petiole 2-4 cm, glabrous; |
Flowers | |
Fruits | acorn 1.2-1.7 cm long, 1-1.2 wide, ovoid-cylindrical; solitary or paired; on a 4-5 mm long peduncle; cupule turbinate 12-17 mm in diameter, 10-12 mm high, with greyish pubescent scales; enclosed at 1/3 in the cup; maturing in 1 year in August to October. |
Bark, twigs and |
twig 1-3 mm thick, glabrous, with conspicuous yellowish lenticels; bud conical or ovoid 3-5 mm long, greyish; |
Hardiness zone, habitat | |
Miscellaneous | --
A. Camus : n° 399; -- Sub-genus Quercus, section Lobatae, Series Erythromexicanae, Group Acutifoliae; -- -- Possible confusion with Q. sartorii which has leaves only slightly shiny obove, and the teeth located in the distal half or 2/3 of the blade. -- Differs from Q. meavei which has acorns maturing in 2 years, more secondary veins (13-18) impressed above. |
Subspecies and varieties |
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Pictures |
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