| Quercus viminea | |
| Author |
Trel. 1924 Mem. Natl. Acad. Sci. 20: 123 Diagnosis here |
| Synonyms | bolanyosensis Trel. 1924 Diagnosis here |
| Local names | encino sauce; |
| Range | South
Arizona; Mexico (Durango, Sinaloa, Jalisco, Nayarit, Aguascalientes, Chihuahua,
Sonora); 1500 to 2100 m; |
| Growth habit | reaches
10 m tall, with trunk to 0.3 m in diameter; |
| Leaves | 3.5-12
x 0.7-1.5 cm; semi-evergreen; leathery; narrowly lanceolate, fusiform;
apex acuminate, aristate; base rounded or cordate, often oblique; margin
remotely thickened, not revolute, entire or with 1-3 asymmetrical pairs
of aristate teeth in apical 1/3; adaxially light green, lustrous, almost
hairless except some scattered multiradiate and uniseriate glandular trichomes;
abaxially yellowish, with stipitate fascicled hairs (mostly at axils),
and numerous golden glandular trichomes; 9-12 vein pairs flat adaxially,
raised underneath; epidermis papillose; petiole 6-15 mm, pubescent becoming
hairless; |
| Flowers | in January; male catkins 5-6 cm long, hairy, bearing numerous flowers; pistillate flowers hairy, 1 to 3 together at tip of a thick, short peduncle; |
| Fruits | acorn
1-1.5 cm long, ellipsoid or ovoid; singly or paired on a 4-5 mm long peduncle;
enclosed 1/3 or more by cup; cup half-round, with straight rim, 8-11 mm
in diameter, with appressed, pubescent, rounded scales; maturing in 2
years from May to July; |
|
Bark, twigs and |
bark
striated; twigs dark red brown, 2-3 mm thick, glabrescent then glabrous
at the end of first year, with numerous raised lenticels; terminal bud
brown, ovoid, pointed, hairless, 1.5-3 cm long; |
| Hardiness zone, habitat | not quite hardy; |
| Miscellaneous | --
A.Camus : n° 299; -- Sub-genus Quercus, section Lobatae, Series Erythromexicanae; -- The Mexican species Q.bolanyosensis Trel. is sometimes considered as a true species (diagnosis here); |
| Subspecies and varieties |
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| Pictures |
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