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Tree and Shrub Gallery

White Oak Group - Beech Family

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Trees on this Page

Post Oak (Cross Oak) Quercus stellata
Sand Post Oak (Runner Oak, Drummond Post Oak) Quercus margarettiae (Quercus margaretta, Quercus drummondii)
Shortlobe Oak (Bastard Oak, Bigelow Oak) Quercus sinuata var. breviloba
Havard Shin Oak (Sand Shinnery Oak) Quercus havardii
Burr Oak (Mossy-cup Oak) Quercus macrocarpa


Hybrids on this Page

Harbison Oak Quercus X harbisonii [stellata X virginiana]



Fagaceae - Beech family
Post Oak (Cross Oak) Quercus stellata
Tree can grow to 75 feet tall. These large leaves have a fat, tri-lobed shape. Acorns are oval in shape and eaten by dear and turkey. Wood is used for railroad ties and fence posts. Disturbing the soil around this tree can kill it.
(Native of Texas - Taylor, etc.)


Tree: Up to 75 feet tall.
Bark: Light gray to reddish brown, fissures of plate-like scales.
Twigs: Yellow to gray, dense stellate hairs.
Leaf: Variable, 4"-7" long, stiff. Top dark green to yellowish, dull or glossy, a few harsh hairs makes it feel rough. Underneath is yellowish green, somewhat hairy but not velvety with stellate hairs. Has 3-5 symmetric lobes and a round base. Most leaves look like a cross (but not all). The large side lobes are rounded or squared.
Look-a-likes: Q. margarettiae and Q. marilandica.
Buds: Reddish brown, ovoid.
Flower: Male flowers are 5" long, yellow, and hairy. Female flowers are tiny at ends of stems with red stigmas.
Acorn: Oval to oblong, 1/2"-3/4" long, with a wide base. Light brown, shinny.
Cup: Bowl shaped. Solitary or in clusters with almost no peduncle. Covers 1/3-1/2 of the nut. Grayish, scales tightly appressed, some hairs inside. Rounded or acute apex.
Notes: Drought tolerant. Extremely intolerant of root disturbances and over watering. This tree was used medicinally for a variety of ailments.

Possible Hybrids in my area

This tree produces hybrids with many other species including those in different groups.
Harbison Oak Quercus X harbisonii [stellata X virginiana]
(Native of Texas - Coke, Fisher)

Tree Close-ups

Specimen A

Quercus stellata X ?. Big tree, trunk about 18" wide, large spreading branches. Leaves about 6" long.

Photos taken in Taylor County, Texas, September 2004

Post Oak, Quercus stellata, A   Post Oak, Quercus stellata, A (2)   Post Oak, Quercus stellata, A (3)   Post Oak, Quercus stellata, A (4)   Post Oak, Quercus stellata, A (5)

Specimen B

Quercus stellata. Trunk about 14" wide, large spreading branches. Leaves about 5" long, dark green turning yellow in fall. Acorn is light brown, short, flat apex. Very deep cup covers most of acorn, clustered with no peduncle, large scales, hang on tree long after leaves fall.

Photos taken in Taylor County, Texas, November-December 2005

Post Oak, Quercus stellata, B (3)   Post Oak, Quercus stellata, B (4)   Post Oak, Quercus stellata, B (1)   Post Oak, Quercus stellata, B (2)   Post Oak, Quercus stellata, B (6)   Post Oak, Quercus stellata, B (5)

Specimen C

Quercus stellata. This is a true Post Oak. Trunk about 24" wide, large spreading branches. Leaves 5"-6" long, dark green turning red in fall. Acorn is shinny medium brown, oblong, 1/2"-3/4" long. Cup covers half of acorn, clustered with no peduncle, large scales.

Photos taken in Van Zandt County, Texas, November 2006

Post Oak, Quercus stellata, C, VZ   Post Oak, Quercus stellata, C, VZ (1)   Post Oak, Quercus stellata, C, VZ (2)   Post Oak, Quercus stellata, C, VZ (3)   Post Oak, Quercus stellata, C, VZ (4)   Post Oak, Quercus stellata, C, VZ (5)

Specimen D

Quercus stellata flowers.

Photos taken in Taylor County, Texas, March 2006

Post Oak, Quercus stellata, D


Fagaceae - Beech family
Sand Post Oak (Runner Oak, Drummond Post Oak) Quercus margarettiae (Quercus margaretta, Quercus drummondii)
(Native of Texas - Brown)


Tree: Up to 50 feet tall. Twisting branches. Can have rhizomes.
Bark: Brown-gray and scaly, turning darker with vertical ridges.
Twigs: Green or reddish turning gray, not hairy.
Leaf: 1 1/2"-4" long, similar to Quercus stellata, 3-5 deep lobes with a round base, three major lobes at the end form a cross, large side lobes are squared or compound. Lobes point towards the leaf apex. Top dark green, glossy or a few hairs (not harsh). Underside of leaf is light green, velvety.
Look-a-likes: Q. stellata and Q. marilandica.
Buds: Reddish brown, apex obtuse, mostly hairless.
Flower: Male flowers are 2"-3" long, light green catkins. Female flowers are red and tiny at ends of stems. Multiple terminal buds are larger than Quercus stellata.
Acorn: Oval to oblong, 1/2"-3/4" long, with a wide base. Shiny, light brown.
Cup: Solitary or in clusters on a peduncle. Bowl shaped. Covers 1/3-1/2 of the nut. Loosely appressed scales, grayish hair. Some hairs inside.

Tree Close-ups

Specimen A

Probably Quercus margarettiae. 4" long leaves are like Q. stellata with the two large side lobes angled towards the apex. Acorn is light brown, 3/4" long. Cup is hairy, inside and out, with short peduncle. Its scales are small.

Photos taken in Taylor County, Texas, December 2005

Sand Post Oak, Quercus margarettiae, A   Sand Post Oak, Quercus margarettiae, A (2)   Sand Post Oak, Quercus margarettiae, A (3)   Sand Post Oak, Quercus margarettiae, A (4)


Fagaceae - Beech family
Shortlobe Oak (Bastard Oak, Bigelow Oak) Quercus sinuata var. breviloba
(Native of Texas - Taylor, Callahan, Coleman, Brown, Runnels, Coke, Nolan, Fisher)


Tree: 10-12 feet tall (but some up to 50 feet tall). Singular or thickets. Often multi-trunked.
Bark: Gray to light brown, flaky to papery, exfoliating.
Twigs: Gray, rare hairs.
Leaf: Large, 1"-4" long. Margin has non-symmetric lobes. (sinuous) with an acute base. Dull green or silvery because of tiny hairs (more hairs with sun exposure).
Look-a-likes: Q. stellata and Q. margarettiae.
Buds: Brown or reddish brown, broadly ovoid, no hair.
Flower: Male flowers are 2" long, red catkins. Female flowers are tiny at ends of stems.
Acorn: 1/2"-3/4" long, short with wide base. Shiny, light brown.
Cup: Single or paired, no peduncle. shallow cup. Covers 1/4 or less of the nut. Thin rim, ovate scales appressed, gray with reddish margins. Not hairy.
Notes: Drought tolerant.

Tree Close-ups

Specimen A

Quercus sinuata var. breviloba. 4" long leaves are like Q. stellata with the two large side lobes angled towards the apex. Acorn is 5" long leaves with small, non-symmetric lobes. Bark is brown with deep furrows, light brown, 3/4" long. Cup is hairy, inside and out, with short peduncle. Its scales are small.

Photos taken in Taylor County, Texas, May 2005

Shortlobe Oak, Quercus sinuata var. breviloba, A   Shortlobe Oak, Quercus sinuata var. breviloba, A (3)   Shortlobe Oak, Quercus sinuata var. breviloba, A (1)   Shortlobe Oak, Quercus sinuata var. breviloba, A (2)


Fagaceae - Beech family
Havard Shin Oak (Sand Shinnery Oak) Quercus havardii
(Native of Texas - Taylor, Jones, Callahan, Coke, Fisher)


Tree: 3 feet tall, rarely a small tree. Thickets by rhizomes.
Bark: Light gray, scaly, papery.
Twigs: Brown or gray. Young twigs gray or yellow matted hair. Old twigs loose most of the hair.
Leaf: 3/4"-4" long. Vary variable, entire to many sharp lobes, round base. Leathery. Top is gray to yellowish green turning brownish with age. Lower surface has felty gray-yellow hairs, prominent secondary veins.
Look-a-likes:
Buds: Dark red-brown with a few hairs.
Flower: Male flowers are 1 1/2" long, heavily flowered, catkins. Female flowers are tiny at ends of stems.
Acorn: Up to 1" long, ovoid to oblong. Shinny, chestnut-brown.
Cup: Solitary or paired on a short peduncle. Deep bowl to goblet-shaped. Covers 1/2 of the nut. Scales reddish brown, triangular.
Notes: Taller trees are thought to be a hybrid with Q. stellata.

Tree Close-ups

Specimen A

Quercus havardii. 2-3 feet tall. Leaves are about 3" long with irregular pointed lobes, round base. Acorn is about 1 1/2" long, dark brown fading to light brown at the cup, apex is white. Cup has small scales, no peduncle, and covers 1/4 of nut.

Photos taken in Taylor County, Texas, September 2004

Havard Shin Oak, Quercus havardii, A   Havard Shin Oak, Quercus havardii, A (1)   Havard Shin Oak, Quercus havardii, A (2)


Fagaceae - Beech family
Burr Oak (Mossy-cup Oak) Quercus macrocarpa
(Native of Texas - Callahan, Brown)


Tree: 60-150 feet tall. Big tree with heavy spreading limbs. Bark is light gray or reddish brown with deep fissures or irregular flakes. Twigs can have corky ridges. Long taproot. Fast growing and long-lived.
Bark: Dark gray, scaly or flat-ridged.
Twigs: Grayish or reddish, often with flat corky wings, fine hairs.
Leaf: Very long leaf, 6"-12" long, has a lobed margin (sometimes deeply), often fiddle-shaped. Apex usually rounded. Base is narrow with small lobes. Secondary veins arched. Top is dark green, lustrous. Beneath is light green or white, hairy but not felty.
Look-a-likes:
Buds:
Flower: Male flowers are 4"-6" long, yellow-green catkins. Female flowers are red, tiny at ends of stems.
Acorn: Round up to 2" long and wide. Light brown or grayish. Fine hairs.
Cup: 1-3 on a peduncle. Deep cup, wide triangular scales, keeled. Fringe on edge of cup. Covers 1/2-7/8 of the nut.
Notes: Cold-tolerant, drought-tolerant, swamp-tolerant. One of the best oak lumbers. Used medicinally.

Tree Close-ups

Specimen A

Probably Quercus macrocarpa X ?. 5" long leaf is fiddle-shaped. Dark gray-brown bark is scaly. Acorn is under 1/2" long, barrel shaped, light brown, flat apex. Deep cup is very hairy, inside and out, but no "moss". It has wide triangular scales, keeled, red tipped.

Photos taken in Taylor County, Texas, December 2004

Burr Oak X, Quercus macrocarpa X, A   Burr Oak X, Quercus macrocarpa X, A (1)   Burr Oak X, Quercus macrocarpa X, A (2)   Burr Oak X, Quercus macrocarpa X, A (3)   Burr Oak X, Quercus macrocarpa X, A (4)

Specimen B

Quercus macrocarpa

Photos taken in Taylor County, Texas, April 2007

Burr Oak, Quercus macrocarpa - B, Ann

Specimen C

Quercus macrocarpa. Deeply lobed leaves are about 8" long. This was a tree from a nursery.

Photos taken in Taylor County, Texas, December 2007

Burr Oak, Quercus macrocarpa - C, Bobbie (3)   Burr Oak, Quercus macrocarpa - C, Bobbie   Burr Oak, Quercus macrocarpa - C, Bobbie (1)   Burr Oak, Quercus macrocarpa - C, Bobbie (2)   Burr Oak, Quercus macrocarpa - C, Bobbie (5)   Burr Oak, Quercus macrocarpa - C, Bobbie (4)   Burr Oak, Quercus macrocarpa - C, Bobbie (6)

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