Quercus pumila |
Quercus laevis |
|
---|---|---|
runner oak, running oak |
turkey oak |
|
Habit | Shrubs, deciduous or tardily deciduous, to 1 m. Bark gray to dark brown. | Trees or shrubs, deciduous, to 20 m. Bark bluish gray, deeply furrowed, inner bark orangish or reddish. |
Twigs | gray-brown to reddish brown, 1-2 mm diam., sparsely to uniformly pubescent. |
dark reddish brown with distinct grayish cast, (1.5-)2-3.5(-4) mm diam., sparsely pubescent to almost glabrous. |
Leaves | blade oblong to narrowly obovate, 25-100 × 10-33 mm, base acute to rounded, margins entire, revolute, with 1 apical awn, apex acute or obtuse to rounded; surfaces abaxially uniformly gray-brown pubescent, rarely glabrate, adaxially somewhat convex, rugose, glabrous or with scattered hairs along midrib. |
blade circular or broadly ovate-elliptic, widest near or proximal to middle, 100-200 × 80-150 mm, base attenuate to acute, occasionally obtuse or rounded, blade decurrent on petiole, margins with 3-7(-9) lobes and 7-20 awns, lobes attenuate to falcate, occasionally oblong or distally expanded, apex acute to acuminate; surfaces abaxially occasionally orange-scurfy, usually glabrous except for conspicuous axillary tufts of tomentum, adaxially glabrous, secondary veins raised on both surfaces. |
Acorns | annual; cup deeply saucer-shaped to turbinate, 5-12 mm high × 10-15 mm wide, covering 1/3-1/2(-2/3) nut, outer surface pubescent, inner surface densely pubescent, scales rarely involute, often tuberculate, tips tightly appressed, acute; nut globose to ovoid or broadly oblong, 9.5-15 × 9-12 mm, glabrate, scar diam. 5-8 mm. |
biennial; cup somewhat goblet-shaped, 9-14 mm high × 16-24 mm wide, covering 1/3 nut, outer surface puberulent, inner surface pubescent, scales occasionally tuberculate, tips loose, especially at margin of cup, acute, margin conspicuously involute; nut ovoid to broadly ellipsoid, 17-28 × 12-18 mm, often faintly striate, glabrate, scar diam. 6-10 mm. |
Terminal | buds brown to red-brown, ovoid, 2.5-4.5 mm, glabrous or with ciliate scale margins. |
buds light brown to reddish brown, conic or narrowly ovoid-ellipsoid, 5.5-12 mm, pubescent. |
Quercus pumila |
Quercus laevis |
|
Phenology | Flowering spring. | Flowering early to mid spring. |
Habitat | Dry sandy soils of savannahs, low ridges and oak-pine scrub, occasionally at margins of poorly drained sites | Dry sandy soils of barrens, sandhills, and well-drained ridges |
Elevation | 0-100 m (0-300 ft) | 0-150 m (0-500 ft) |
Distribution |
AL; FL; GA; MS; NC; SC
|
AL; FL; GA; LA; MS; NC; SC; VA
|
Discussion | Although no hybrid combinations have been formally proposed, D. M. Hunt (1989) has reported evidence of hybridization with Quercus hemisphaerica, Q. incana, Q. myrtifolia, and Q. phellos. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Quercus laevis reportedly hybridizes with Q. falcata (= Q. ×blufftonensis Trelease), Q. hemisphaerica, Q. incana, and Q. marilandica (C. S. Sargent 1918); with Q. nigra; and with Q. arkansana, Q. coccinea, Q. myrtifolia, Q. phellos, Q. shumardii, and Q. velutina (D. M. Hunt 1989). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Fagaceae > Quercus > sect. Lobatae | Fagaceae > Quercus > sect. Lobatae |
Sibling taxa | ||
Synonyms | Q. catesbaei | |
Name authority | Walter: Fl. Carol., 234. (1788) | Walter: Fl. Carol., 234. (1788) |
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