Branching Broomrape Orobanche ramosa

Branching Broomrape Orobanche ramosa. A leafless, parasitic plant whose stems tap into the roots of other plants, like Tobacco, Potatoes, or Mint, which sends up branching clumps of dark colored stems which bear light lavender tube flowers with a white mark on the lip.  Under the ground the plant forms a bulb like nodule around the roots of some plant, then sends up a short, stout stalk that branches at the surface.  Not able to produce chlorophyll, Broomrape has no leaves, parasitizing other plants. Locally uncommon, this pest can form colonies which are not noticed, since they are very short, and get quickly overgrown after they bloom.  In Europe this species is harvested and prepared like asparagus. SWk, Not in Book, 3/25/19 – 5/4/19; 3/28/20 – 5/?/20;

Branching Broomrape habit; a leafless parasitic plant producing clumps of light blue tube flowers.

Note; Broomrape does not produce any leaves, tapping into the roots of other plants

Note; branching clumps of leafless stalks, each bearing slightly arched, blue flowers with a white spot on the lip and into the throat.

Sage; Texas Sage

Sage; Texas Sage, Leucophyllum frutescens.  This hardy, evergreen shrub from the Chihuahua desert sports light grey, rounded leaves, and bright purple tube flowers which are intensely fragrant.  A popular flowering hedge, Texas Sage tolerates trimming, is drought resistant, prefers full sun, and blooms when nothing else will.  The light grey, slightly fuzzy, oval leaves are attractive in their own right, and smell only slightly of sage.  The grey color and hairs give the shrub protection from both the hot sun, and cold desert nights.  The plant blooms irregularly, breaking out into full blooms several days after a rain, all the sage plants in an area blooming so vigorously that the shrub is covered with light purple tube flowers that open to a 5 petal corolla.  Flowers bud singly from the node of each leaf, covering new growths with blossoms.  Honey bees swarm to the heavily pungent flowers for the few days they are open.  This shrub will reach 10 – 15 feet in height if watered, but is usually shorter, preferring to spread out in a dense, compact, naturally rounded shape that needs little maintenance.  It does not propagate naturally in the DFW region, but does well when planted.  Most plants are found in yards, hedges around shopping centers, or boulevard medians.

Texas Sage; a compact shrub with light grey, fuzzy leaves which blooms periodically with masses of purple tube flowers.

Note; oval, slightly pointed, light grey leaves are densely arranged in an alternating whorl.

Note; all Texas Sage shrubs in an area will burst into flower at the same time, covering the plant with pungent, lavender blooms.

Note; lavender tube flowers, the throats speckled with orange or red, open up to a corolla of 5 lobes, two pointing up, three pointing down.

Lantana, Calico Lantana

Lantana; Calico Lantana Lantana urticoides/horrida. A native of central and south Texas, this deciduous, invasive plant quickly spreads onto poor, overgrazed, or disturbed soil.  A first generation succession plant, it can provide ground cover to reduce erosion, and can help stabilize leaf litter and add humus to the soil.  However, its leaves have a pungent smell, it stalks are lined with tiny, stiff, and sharp spines, and its juicy blue-black berries are poisonous to most animals, making it unpalatable to most livestock, hence the alternative species name, horrida.  Locally, Lantana is a deciduous perennial, but it cannot withstand severe freezes of northern clines.  Mildly fragrant, clustered flower heads begin as yellow, but turn lavender, purple, and red over time, hence the name ‘calico’.  Sphinx moths pollinate the flowers in the warm air of summer evenings, and several green orb spiders set up their webs for smaller fair that are attracted to the flowers.  Unlike many Texas natives which flower before leafing, Lantana blooms from new shoots that leaf out first.  The large, folded leaves, born in opposite pairs, have coarsely toothed margins.  DFW is in the extended range of Lantana, so while it will survive if planted and watered, it does not propagate locally, and so is restricted to gardens and flower beds.

Note; dense heads of 5 petal tube flowers begin as yellow, turning lavender with age.

Note; stiff, woody stems lined with ridges of small, stiff, sharp thorns

Note; days old flowers turn lavender with red centers around a nectar tube.

Note; bunches of juicy, blue black berries are strong smelling, and poison to most animals, though some birds eat them

Viburnum, Rusty Blackhaw

Viburnum; Rusty Blackhaw Viburnum Viburnum rufidulum Raf;.  A small, understory, evergreen tree with cubed, but not ridged, corky bark, V rufidulum yearly produces new sprigs of glossy green, oval leaves with a very finely toothed margin, arranged in opposite pairs along the stems, completely lacking any drip-tip.  New stems, often long arching suckers off of the main trunk and branches, have a slight layer of rusty colored fuzz, giving the plant its descriptive name. Panicles of small, white, tube flowers that are mildly fragrant, bud from the ends of new growth.  The short tube ends in a corolla of 5 petals, with five white stamen, each tipped with a yellow anther, protruding beyond the profile of the flower, giving the bunches a slightly fuzzy look. The fruit are oblong, dark blue drupe with a single seed. Viburnum cultivars are popular in hedges, both for their yearly bloom of large, showy bunches of white flowers, and their glossy, evergreen foliage. (957-958) 3/30 – 4/15/15; 3/15 – 4/5/16; 3/22/17 – 4/7/17; 3/28/18; 19 no obs; 3/25/20;

Note; terminal bunches of white tube flowers that unfold into a corolla with 5 petals, the white stamen tipped with yellow anthers protrude beyond the profile of the flowers, giving the bunches a fuzzy look

Rusty Blackhaw habit; an evergreen, understory shrub with dark, corky bark, glossy foliage, and showy bunches of white flowers that convert to oblong blue drupes

Note; the dark bark is corky and divided into cubes, not furrowed ridges.

Note; bright, evergreen, glossy, oval leaves with very fine serration along the margins, are arranged in opposite pairs along stems, completely lacking any drip-tip

Privet; Glossy Privet

Privet; Glossy/Japanese Privet Ligustrum lucidum var. macrophyllum Ait;. Much bigger, more upright, and less aggressive than L sinense (Chinese privet), this vigorous, invasive, hardy, evergreen, ornamental from south-eastern Asia is more of an understory tree than bush.  The smooth, light grey bark of the trunks, often mottled with lichens, bear large (2-4”), glossy green, pointed leaves that are arranged in opposite pairs along long (6’+) arching stems.  More upright, L lucidum is an understory tree with 3-6 trunks, and though the stems might take root if they touched the ground, they rarely do. Terminal panicles of fragrant, white flowers, each with 4 rounded petals, grow out from the axils of new leaves and the ends of last year’s stems.  Flowers convert to blue-black, oblong fruit which remain on the bush through the winter, providing spring food for migrating birds.  L lucidum is common both in the thin soils of limy high ground and the deep soils of lowland flood plains. (856) 5/28/15- ; 16 not recrd; 17 not recrd; 5/26/18; 19 no obs; 5/10/20;

Glossy Privet habit; an upright, evergreen bush with tree like trunks, often mottled with lichens, which bears large, opposite, glossy, oval leaves, and terminal panicles of showy, white flowers

Note; the trunks are smooth, lacking the knobs of L sinense (Chinese privet)

Note; opposite, glossy, dark green, pointed, egg shaped leaves with a sharp drip-tip stay on the plant for several years

Note; terminal panicles of showy, white flowers with a mild fragrance, each flower composed of four rounded petals, stamen and pistol emerging beyond the flower profile

Note; each shallow tube flower has four rounded petals, two white, filamentous stamen tipped with cream colored anthers extending beyond the flower face

Privet; Chinese Privet

Privet; Chinese Privet Ligustrum sinense Lour;. This leggy, drooping, invasive, evergreen ornamental shrub was imported for its terminal spikes of fragrant white flowers and green foliage.  Privet sports multiple, small, trunk like stems which sprout from a central, shallow, bulbous root, sprouting new growth from the base and from branches in March, then developing terminal sprays of flowers which open in April or May.  Flowers convert to small, oblong, blue-black fruit that soon ripens, but does not fall until the next spring (March).  The mass of showy, fragrant flowers are white, with 4 elongated petals, arranged around a short tube, from which two filamentous stamen protrude, each tipped with a purple anther.  Pointed, elliptical leaves are born in opposite pairs along new stems, remaining for several years.  The long thin, brittle new shoots are easily snapped, but grow back quickly, gradually bending over if not supported, till they touch the ground. They will take root if they touch, so privet needs to be cut back twice a year to keep it in check.  Older trunks develop a knobby surface with sharp, spike like protuberances where opposite leaf ribs once grew. This privet has taken over large areas of moist bottom land, forming interlaced understory thickets that are nearly impenetrable without a machete or hardy nippers.  The roots are shallow and the stumps easily removed, but Privet can grow back from roots.  Privet does not colonize open grass land, as it does not tolerate full sun. (857) 4/25/15; 5/25/16; 4/18/17- ; 4/18/17; 5/20/18- ; 5/4/19; 5/15/20

Chinese Privet habit; an evergreen shrub with multiple, long, arching trunks radiating out from a central, shallow, bulbous root, stems taking root wherever they touch the ground, bearing attractive elliptical leaves and terminal sprays of fragrant white flowers

Note; evergreen, dark green leaves born in opposite pairs along stems.

Note; showy, terminal panicles of fragrant white flowers, each with four elliptical petals, and two white stamen tipped with purple anthers.

Note; each flower has four elongated, slightly curled, white petals arranged around a short, central tube from which two stamen, tipped with an anther, protrude

Note; flowers convert to black/dark blue, oval to round berries, eaten by many migrating birds

Catalpa; Northern Catalpa

Catalpa; Northern Catalpa Catalpa speciosa. A large, spreading, deciduous tree with a thick, light colored trunk, the bark being made of nearly smooth scales rather than corky furrows.  Trunks often look disproportionately thick compared to the tree size, and old trees are often hollow.  Large, soft, heart-shaped leaves, grow up to 6” across.  The leaves of the similar, but more rounded Southern Catalpa (C bignonioides) have a bad smell when crushed.  The wood is soft, and brittle and trees are easily damaged in storms, though the trunk usually remains and branches grow back.  A grey sphinx moth pollinates the showy tube flowers, laying its eggs on the leaves, which hatch into linearly striped black and white caterpillars that can nearly defoliate the tree.  Not native to this area, Catalpa is grown for its flowers; short lived, terminal, sprays of showy, white, fragrant tube flowers that open up to a frilly corolla with five lobes.  The flowers are streaked with light purple lines and marked by two angular yellow marks in the throat and on the lip.  A long pistol protrudes beyond the corolla, remaining after the flowers have fallen.  Flowers produce long bean pods which open to release tiny seeds surrounded by downy cotton.  The beans burn slowly, producing a thick smoke, giving the tree it nickname, “cigar tree”. (927) 5/8/15-5/18/15; 4/28/16; 17 no observation; 18 no obs; 5/1/19; 5/1/20 – 5/9/20;

Northern Catalpa habit; a deciduous tree with a thick trunk with light colored scaly, rather than furrowed bark, producing panicles of showy white flowers

Note; large, soft, heart shaped leaves on long petioles alternate along new stems in a spiral

Note; terminal sprays of showy, fragrant, white tube flowers that open up into a corolla of 5, frilly lobes.

Note; purple lines and two angular, yellow spots in the throat and lip.

Note; the white pistol extends beyond the flower

Buckeye; Texas Buckeye

Buckeye; Texas Buckeye Aesculus arguta Buckley;. A low-growing, shade loving, weak, crooked, deciduous, understory tree which grows in moist soils, bearing large (12-18”), soft, palmate leaves with a toothed margin. The hand-shaped leaves have up to 9 “fingers” with herring-bone veination radiating out from a central stem.  The light gray bark is soft and scaly looking.  Dense, terminal panicles sprouting from new shoots produce greenish white to yellowish bulb-shaped flowers, the pistol and filamentous stamen (topped with brown anthers) protruding beyond the petals.  Flowers convert to a dry, ball-like, prickly seed pods covered with dull spikes, containing 2 flattened lustrous, smooth seeds 5/8” to ¾” across.  Found only along creek beds in low lying areas. Stream-side portions of Big Tree Circuit and DORBA trails (678-679) 3/28-4/13/15; 3/21/17-4/7/17; 3/22/18-3/29/18; 3/25/20 – 4/1/20;

Texas Buckeye habit; a short, soft, deciduous understory tree with large, hand shaped leaves, each with up to 9 fingers, found locally only along stream beds

Note; the soft, scaly bark has random, corky knobs embedded in it.

Note; the large, palm shaped leaves have 7-9 narrow elliptical leaflets, each with toothed margins, all radiating from a common stem.

Note; terminal panicles of bulb shaped yellow-green flowers with protruding pistol and filamentous stamen, each tipped with brown anthers. Late March to early April

Note; the seed pod is a dry, round, brown pod with dull warty projections.

Vervain, Wright’s Vervain

Wright’s Vervain Verbena wrightii. A low growing, sprawling perennial consisting of tough stems radiating outward from a central tap root.  Opposite leaves are divided into three deeply pinnate lobes, which are wider than those of V hasata, Blue Vervain.  Thick, bushy, terminal spikes form a cone-shaped, tight cluster, or head, of light lavender-blue tube flowers.  Many flowers are open at the same time, creating a ring of lavender around the head, with green, unopened buds at the top.  The tubes are completely concealed in bracts, opening up to a corolla of 5 cleft petals, the bottom ‘lip’ petal being longer, and more deeply cleft.  This vervain prefers full sun, so is not found in shaded or forested areas, but is common everywhere else, specifically prairies, mowed areas, and west facing forest margins, where it forms dense clumps of bright blue flowers.  A favorite of butterflies and bees, Wright’s Vervain blooms early, goes dormant during summer heat, and resumes blooming in cooler fall weather.  PDU, CC (372) 4/2/15 – ; 3/10/16; 3/12/17- ; 3/22/18; 3/23/19; 3/25/20

Wrights Vervain habit; dense clumps of sprawling stems radiating out from a central root bearing dense heads of bright lavender blue flowers

Note; deeply pinnate, three lobed, narrow leaves are arranged in opposite pairs along smooth stems

Note; terminal spikes form thick flower heads of bracts from which the lavender blue tube flowers emerge.

Note; tube flowers open to a corolla of 5 petals, the lip petal being longer, and cleft into two lobes

 

Vervain, Blue Vervain

Blue (Tall) Vervain Verbena hastata.  A tall (1-3’), stringy, perennial with strongly upright, weakly branching, slightly grooved stems off of which leaves with deeply pinnate lobes are arranged in opposite pairs.  Sparse, tiny, blue, tube flowers bud directly off long terminal spikes, deeply enough embedded within shallow bracts so that no peduncle (stem) can be seen. The tube opens into a corolla of 5 petals, each cleft with a small wedge.  Although it tolerates full sun to partial shade, this plant is widely scattered in yards, as well as open fields, since it is tall enough to compete with other leggy plants.  Though tiny, flowers attract many butterflies.  PDU, CC and CA (372) 4/10/15; 4/18/16; 3/21/17- ; 4/22/18; 4/20/19; 3/25/20

Blue (tall) Vervain habit. Note; very leggy, branching plant with tall, erect, grooved stems, lined with very narrow, deeply pinnate leaves in opposite pairs, bearing terminal spikes of tiny blue tube flowers.

Note; tiny, blue tube flowers deeply embedded in smooth, terminal flower spikes.

Note; tube flowers open to a five lobed corolla, each petal with a wedge shaped cleft.