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Quercus fusiformis | |
Author | Small 1903 Fl. S.E. U.S. 353 |
Synonyms | virginiana var. fusiformis
(Small) Sarg.1918 virginiana subsp fusiformis (Small) E.Murray 1983 virginiana var. macrophylla Sarg. 1918 oleoides var. quaterna C.H.Muller 1951 |
Local names | plateau
oak ; Texas live oak ; escarpment live oak ; scrub live
oak ; |
Range | Texas,
Oklahoma ; Mexico (Coahuila, Nuevo Leon, Tamaulipas); 0-1200 m ; |
Growth habit | reaches
8 m, but also spreading shrub 1.5-3 m tall; |
Leaves | 2-7
x 1-2 cm; evergreen; leathery; oblong, lanceolate or narrowly oval; apex
acute or obtuse, with a short mucro; base cuneate or obtuse or truncate;
margin entire or often with 3-4 pairs of teeth, weakly revolute; grey
green, usually glabrous and bright above, with sometimes some stellate,
sparse hairs; pale, blue green tomentose beneath, with stellate hairs
and some glandular ones; 6-11 vein pairs, inconspicuous above, slightly
raised beneath; epidermis bullate ; petiole tomentose 3-8 mm long; |
Flowers | spring; male inflorescence 3-5 cm long; female inflorescence 1,5-5,5 cm, with 2-3 flowers, sometimes more; |
Fruits |
acorn long ovoid to spindle-shaped, 1,5-2 cm long, glabrous, striate, on 3-8 mm long peduncle, solitary or 2-3 together; cup with greyish hairs, turbinate or obconical, 1 cm in diameter, with scales thickenned near base, covering 1/3 to 1/4 of nut; cotyledons connate; maturing in 1 year, in October; |
Bark, twigs and |
bark as in Q.virginiana
(blackish brown, scaly); twigs light grey, slightly tomentose, 1.5-2.5
mm thick, with inconspicuous lenticels; bud dark brown, subglobose,
pubescent, 1.5-3 mm long; stipules 2-2,5 cm long, pubescent, deciduous
; |
Hardiness zone, habitat | hardy;
all types of soils, but prefers calcareous ones; |
Miscellaneous | --
A. Camus : n° 172; -- Sub-genus Quercus, Section Virentes; -- For some Authors, it is a variety of Q.virginiana , very closely related to. -- In the southern part of its range, Q.fusiformis is likely to form hybrid-complex with Q.oleoides Schltdl.& Cham, named by C.H.Muller "Q.oleoides var. quaterna"; -- Moreover, Q.fusiformis is close also to Q.brandegei Goldmann, endemic to Baja California (Mexico). |
Subspecies and varieties |
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Pictures |
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