| Quercus frutex | |
| Author |
Trel. 1924 Mem. Natl. Acad. Sci. 20:82. pl. 120. 1924. Diagnosis here |
| Synonyms | |
| Local names | |
| Range | Mexico (Hidalgo, Mexico DF, Michoacán, Oaxaca, Puebla, Queretaro, Tlaxcala and Veracruz); 2200-3000 m; |
| Growth habit | 2 m tall, sometimes to 7 m; rhizomatous; |
| Leaves | 1.5-5 cm x 0.8-2.5; subcoriaceous to thick; elliptic-oblong or oblong-lanceolate; apex acute to rounded, tip mucronate ; base rounded to subcordate, sometimes cuneate; margin slightly thick, revolute, entire, sometimes crenate or with 2-4 pairs of teeth; adaxially grey-green, pubescent with scattered stellate stipitate trichomes; abaxially pale green, tomentose with stipitate fasciculate trichomes with only 5-9 rays crispate and intertwined; epidermis slightly bullate, visible under the tomentum; 6-11 veins pairs impressed above; petiole less than 0.5 cm, tomentose then glabrescent; |
| Flowers | April; |
| Fruits | acorn more or less broadly ovoid, 0.9-1.4 cm long, ca 1 cm wide, 1-2 together, sessile or on a 0.3-1cm long peduncle; cup halfround 1-1.5 cm in diameter, with straight margin, appressed scales, enclosing about 1/3 to 1/2 of the acorn; maturing first year in August to September; |
|
Bark, twigs and |
bark dull grey, in square plates; twig 1-2.2 mm in diam., densely tomentose with fasciculate stipitate trichomes, yellowish at first, becoming blackish; buds nearly globose, 0.5-2 mm long with glabrescent, ciliate at margin, brown scales; stipules linear or filiform 4-6 mm long; |
| Hardiness zone, habitat | hardy zone 7; |
| Miscellaneous | -- Sub-genus Quercus,
Section Quercus, Series Leucomexicanae, Group Microphyllae; -- Though often considered as a synonym of Q. microphylla, Q. frutex is considered as a separate species by some Mexican Authors (S. Romero Rangel 2002, S. Valencia-A. 2004 and 2017, The Plant List 2013). -- This taxon is a member of the Q. microphylla complex (Valencia-A 2020) composed of Q. cordifolia, Q. deliquescens, Q. frutex, Q. intricata, Q. microphylla, Q. mohriana, Q. repanda and Q. striatula. |
| Subspecies and varieties |
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| Pictures |
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