Oaks of the World

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 Quercus fusiformis
AuthorSmall 1903
Synonymsvirginiana var. fusiformis (Small) Sarg.1918
virginiana ssp fusiformis (Small) E.Murray 1983
virginiana var. macrophylla Sarg. 1918
oleoides var. quaterna C.H.Muller 1951
Local namesplateau oak ; Texas live oak ; escarpment live oak ; scrub live oak ;
RangeTexas, Oklahoma ; Mexico ; 0-1200 m ;
Growth habitreaches 25 m, but also spreading shrub 1.5-3 m tall;
Leaves 2.5-9 x 2.4 cm; evergreen; oblong lanceolate; pointed; grey green, usually glabrous and bright above; pale, blue green tomentose beneath; margin entire or often with 1-3 teeth, weakly revolute; petiole tomentose 2-8 mm long;
Flowersspring
Fruitsacorn spindle-shaped 2-2.5 cm long, on 3-30 mm long peduncle; cup greyish, rounded or top-shaped, 1 cm in diameter, covering 1/3 of nut; cotyledons connate;

Bark, twigs and
buds

bark as in Q.virginiana (blackish brown, scaly); twigs light grey, slightly tomentose; bud dark brown, oval, 1.5-3 mm long;
Hardiness zone, habitathardy; all types of soils, but prefers calcareous ones;
Miscellaneous-- A. Camus : n° 172;
-- section Quercus; sub-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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