Welcome to Catnapin's
Tree and Shrub Gallery
Oak - Beech Family
Oak Info
1. There is only one Genus of oak, Quercus, but many species. Taylor county and surrounding area has about a dozen of the 38 species native to Texas.
2. Leaves come in a large range of sizes and shapes. Even on a single tree, the leaves vary and can look like another species. To make identification even more difficult, many species cross-breed easily.
3. The word "shinnery" may be derived fromchêne (French for oak), and not from the size of the plant.
4. The male and female flower parts are produced in separate flowers but on the same tree. Male flowers grow on long clusters called catkins. Female flowers are tiny at the ends of stems.
5. The fruit of oaks are called acorns. They form inside cups with a hard outer shell and a nut inside.
There are two groups of Oak in Texas
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White Oak Group 1. Produce acorns annually. 2. Some nuts sweet, some slightly bitter. 3. Inside of acorn shell is smooth. 4. Leaves have rounded lobes generally without vein point projections. 5. Bark is generally whitish-gray and scaly. 6. Some species are evergreen. |
Red (or Black) Oak Group 1. Acorns mature in 18 months. 2. Nuts are bitter. 3. Inside of acorn shell is wooly. 4. Leaves have sharp lobes and vein points project past the leaf margin. 5. Bark is black or dark gray with furrows. 6. Young leaves often have a red tint. |
White Oaks click for page
Post Oak (Cross Oak) Quercus stellata
Guadalupe Oak Quercus X guadalupensis [stellata X macrocarpa]
McNab Oak Quercus X macnabiana [stellata X sinuata (durandii)]
Harbison Oak Quercus X harbisonii [stellata X virginiana]
Sand Post Oak (Drummond Post Oak) Quercus margarettiae (Quercus stellata var. margaretta, Quercus margaretta, Quercus drummondii)
Scalybark Oak (Bastard Oak, Bigelow Oak, Durand Oak) Quercus sinuata var. breviloba (Quercus durandii var. breviloba, Quercus breviloba)
Havard Shin Oak (Havard's Shinnery, Sand Shinnery Oak) Quercus havardii
Burr Oak (Mossy-cup Oak) Quercus macrocarpa
Guadalupe Oak Quercus X guadalupensis [macrocarpa X stellata]
Burnet's Oak Quercus X burnetensis [macrocarpa X virginiana]
White Oaks - Evergreen click for page
Southern Live Oak (Live Oak) Quercus virginiana
Harbison Oak Quercus X harbisonii [virginiana X stellata]
Burnet's Oak Quercus X burnetensis [virginiana X macrocarpa]
Texas Live Oak (Plateau Live Oak, Scrub Live Oak) Quercus fusiformis (Quercus virginiana var. fusiformis)
Sandpaper Oak Quercus pungens
Vasey Shin Oak (Vasey Oak) Quercus vaseyana (Quercus pungens var. vaseyana [var. used as prime occasionally])
Mohr Shin Oak Quercus mohriana
Red (or Black) Oaks click for page
Texas Red Oak (Texas Oak, Spanish Oak, Buckley's Oak) Quercus texana -- Quercus buckleyi -- Quercus shumardii var. texana (Quercus nuttallii, Quercus rubra)
Southern Red Oak (Spanish Oak) Quercus falcata
Water Oak (Spotted Oak, Possum Oak) Quercus nigra
Hastings' Oak Quercus X hastingsii [texana (buckleyi) X marilandica (shumardii)]
Blackjack Oak (Iron Oak) Quercus marilandica (Quercus X marilandica [marilandica X shumardii])
Ashe's Blackjack Oak Quercus marilandica var. ashei (Q. neoashei)
Hastings' Oak Quercus X hastingsii [marilandica X texana (buckleyi)]
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