Quercus falcata |
Quercus pumila |
|
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chêne rouge, southern red oak, Spanish oak |
runner oak, running oak |
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Habit | Trees, deciduous, to 30 m. Bark dark brown to black, narrowly fissured with scaly ridges, inner bark orange. | Shrubs, deciduous or tardily deciduous, to 1 m. Bark gray to dark brown. |
Twigs | reddish brown, (1-)1.5-3.5(-4.5) mm diam., pubescent. |
gray-brown to reddish brown, 1-2 mm diam., sparsely to uniformly pubescent. |
Leaves | blade ovate to elliptic or obovate, 100-300 × 60-160 mm, base rounded or U-shaped, margins with 3-7 deep lobes and 6-20 awns, terminal lobe often long-acuminate, much longer than lateral lobes, apex acute; surfaces abaxially sparsely to uniformly tawny-pubescent, adaxially glossy and glabrous or puberulent along midrib, secondary veins raised on both surfaces. |
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. |
Acorns | biennial; cup saucer-shaped to cup-shaped, 3-7 mm high × 9-18 mm wide, covering 1/3-1/2 nut, outer surface puberulent, inner surface pubescent, scale tips tightly appressed, acute; nut subglobose, 9-16 × 8-15 mm, often striate, puberulent, scar diam. 5-10 mm. |
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. |
Terminal | buds light reddish brown, ovoid, 4-8 mm, puberulent throughout. |
buds brown to red-brown, ovoid, 2.5-4.5 mm, glabrous or with ciliate scale margins. |
Quercus falcata |
Quercus pumila |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Dry or sandy upland sites | Dry sandy soils of savannahs, low ridges and oak-pine scrub, occasionally at margins of poorly drained sites |
Elevation | 0-800 m (0-2600 ft) | 0-100 m (0-300 ft) |
Distribution |
AL; AR; DC; DE; FL; GA; IL; IN; KY; LA; MD; MO; MS; NC; NJ; NY; OH; OK; PA; SC; TN; TX; VA; WV
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AL; FL; GA; MS; NC; SC
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Discussion | Native Americans used Quercus falcata in various ways to treat indigestion, chronic dysentery, sores, chapped skin, chills and fevers, lost voice, asthma, milky urine, and as an antiseptic, a tonic, and an emetic (D. E. Moerman 1986). Quercus falcata reportedly hybridizes with Q. ilicifolia (= Q. ×caesariensis Moldenke), Q. imbricaria, Q. incana, Q. laevis, Q. laurifolia (= Q. ×beaumontiana Sargent), and Q. marilandica (E. J. Palmer 1948); with Q. nigra, and Q. pagoda (S. A. Ware 1967; R. J. Jensen 1989); and with Q. phellos, Q. shumardii, Q. hemisphaerica, and Q. velutina. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Fagaceae > Quercus > sect. Lobatae | Fagaceae > Quercus > sect. Lobatae |
Sibling taxa | ||
Synonyms | Q. digitata, Q. falcata var. triloba | |
Name authority | Michaux: Hist. Chênes Amér., no. 16, plate 28. (1801) | Walter: Fl. Carol., 234. (1788) |
Web links |