Wednesday, August 9, 2023

Swamp Milkwort - Polygala appendiculata


As its name implies, swamp milkwort (Polygala appendiculata) is a wetland species, vouchered in Florida only in seven counties in the extreme northern part of the state.  It also is reported in Louisiana, southern Mississippi, and Texas as well as Mexico, the West Indies, and portions of Central and South America.  This is most definitely not a plant suited for below-freezing temperatures.  Throughout its extensive range, it occurs in savannas, pastures, bogs, open wet pine woods, and pond margins.

Like other members of this genus, it is considered to be an annual.  Slender stems emerge in the early spring and reach a mature height of about 18 inches.  The narrow linear leaves are appressed on the stems and alternate along it.  Flowering occurs at the tips of these stems in late spring to early summer.  The blooms are often a pinkish lavender (as they appear in these photos), but can be white or a deeper purple.  Each of these flowers are tiny - no more then 1/4-inch long, but they atttract the attention of small bees and other pollinators.  Small brownish seed capsules result from pollination.

Swamp milkwort is one of 22 species of milkworts native to Florida. Because they are annuals and habitat specific, even the showier members are not often offered for sale by native plant nurseries.  That is especially true for this species.  Despite that, it is an interesting species and should be looked for in various wetland habitats during its blooming season.

These photos were taken by Steve Coleman and used by permission.

Saturday, July 1, 2023

Georgia Milkwort - Polygala leptostachys



Georgia milkwort (Polygala leptostachys) is an annual member of a large genus of wildflowers native to Florida.  Despite its common name, it is far more widespread in Florida than it is in Georgia - or the rest of the Southeast for that matter.  It has been vouchered in many of the counties in north Florida and its range extends down the west coast to Pasco County.  It is sporadically reported from the extreme southern counties of Georgia, Alabama and Mississippi.  Throughout its range, it occurs in well-drained soils and open habitats such as sandhills and disturbed roadsides.

Georgia milkwort is easily overlooked due to its small stature and tiny flowers.  The thin stem can reach a maximum height of about 12 inches at maturity. It is unbranched along most of that height until near the top where it forms 2-3 flowering stems.  The leaves are 1/2-1 inch long and linear; arranged in whorls along the stem.

Flowering occurs in early to mid-summer.  Clusters of greenish white flowers are produced at the tips of the stems.  Each inflorescence is only about 1 inch long and composed of more than a dozen blooms that are less than 0.1 inch long.  As in other members of the milkwort genus, they are composed of 2 winged sepals and 3 smaller side ones as well 3 petals of which one is "keeled" and bearing a fringed crest.  All of this is difficult to distinguish without a good hand or macro lens due to their small size. The flowers bloom from the bottom of the inflorescence up.

Milkworts are primarily pollinated by bees, but I have no reports of this wildflower's significance to pollinators. Its small size and its status as an annual make it very unlikely to be propagated by native plant nurseries. It is an interesting species, however, and should be looked for in the right habitat conditions during its summer blooming period. It may be more widespread than it has been reported.

The photos above were taken by my friend and wonderful nature photographer, Floyd Griffith, and used by permission.





Friday, June 30, 2023

Halberd-leaved Hibiscus - Hibiscus laevis





Halberd-leaved hibiscus (Hibiscus laevis) is yet another perennial native Florida hisbicus species common to wet soils. This one is rather uncommon here; native to only 10 counties in the Florida Panhandle.  It is extremely widespread elsewhere, however, and occurs throughout the eastern two-thirds of the U.S. and in Ontario as well. As would be expected, it dies back to the ground each winter and reemerges in spring.  

Like most of our native hibiscus, halberd-leaved hibiscus eventually attains a mature height of about 6 feet in early summer.  It has a straight stout main stem  and numerous small side branches.  The leaves alternate on the stem and are distinctive in shape - as evidenced by the last photo above.  As the common name signifies, they are halberd-shaped -  a two-handed pole weapon that came to prominent use during the 13th-16th centuries. The halberd consists of a specially shaped axe blade not too different than the blade of these leaves.

The flowers are produced at the axils of the leaves beginning near the top of the stem. Multiple blooms are produced singly or a few at a time during the early to late summer as the plant reaches its final height.  They remain open only for a day.  Flower color can be quite variable; from white (very similar to H. moscheutos) to a deep rosy pink (not unlike H. grandiflorus) but always with a bright crimson-colored center.  The flowers above are between those two extremes. Each flower is about 3 inches across.

Halberd-leaved hibiscus, like other members of this genus, attract the attention of a wide variety of pollinators. Hibiscus as a genus are hosts for several moths, including the Io.  Although many of our native hibiscus are widely propagated and sold by native plant nurseries affiliated with FANN - the Florida Association of Native Nurseries, this species has been ignored to date. Hopefully, this will change and this beautiful species will become more available to native plant gardeners.  I have been growing this now for 2 years at Hawthorn Hill and hope to continue its propagation through the years to come.

Sunday, June 25, 2023

Fringed loosestrife - Lysimachia ciliata





Fringed loosestrife (Lysimachia ciliata) is a perennial wildflower native to only Jackson, Gadsden, and Liberty Counties in the central Panhandle region of Florida, but it is common throughout much of the U.S. except California and Nevada in the far Southwest.  Throughout its vast range in our nation, it occurs in seasonally wet soils along stream banks and similar habitats with rich organic soils and in shady to partially sunny areas.

This species dies back to the ground in early winter and reemerges in early spring.  Eventually, it reaches a mature height of nearly 3 feet.  It produces an upright thin stalk that is unbranched or slightly branched. The leaves are simple and lanceolate, and they occur opposite each other.  As its name implies, the leaf stems are covered with simple hairs.  

Flowering occurs in early summer (May, June).  The bright yellow blooms are about 1 inch across and are produced in open clusters atop the main stem.  They are especially attractive to bees.  Pollinated flowers form rounded seed capsules

This showy wildflower would make a nice addition to a moist area in the understory of a deciduous woodland or partly sunny wetland edge.  It has never, to my knowledge, been sold commercially by members of FANN - the Florida Association of Native Nurseries, but it is available by many native nurseries north of us.  How these seeds/plants would fare in Florida is unknown.

These photos were taken by my friend, Floyd Griffith and used by permission.


Thursday, May 11, 2023

Long-leaved Summer Bluet - Houstonia longifolia

 






Long-leaved summer bluet (Houstonia longifolia) is a rather rare herbaceous perennial wildflower vouchered only from Walton, Washington, and Jackson Counties in the central Florida Panhandle, but widespread to our north; occurring in nearly every state in the eastern half of the nation.  Throughout, it is most often found in open sunny to partly sunny well-drained habitats.  

This species dies back to the ground in winter and reappears in spring. By early summer it reaches its mature height of 10-12 inches. Pairs of opposite narrowly linear 1-inch long leaves occur along the stem.  Some use this feature to distinguish a separate species, H. tenuifolia, from H. longifolia.  I have chosen to lump the two together as many taxonomists do although there are some differences. Flowering occurs in early summer atop the branched stems. These flowers occur in cymes, are about 1/4-inch wide and composed of 4 fused light lavender to white petals.  These occur on noticeable stalks in H. tenuifolia, but on much shorter ones on H. longifolia.  Once pollinated, small capsules are formed. This species is easily propagated by seed sown shortly after ripening.

Long-leaved summer bluet is a close relative of the commonly encountered innocence (H. procumbens) and shares some of those "demure" characteristics. Its small flowers are pollinated by small bees and other small invertebrates, but it is not grown commercially by nurseries affiliated with FANN - the Florida Association of Native Nurseries. It is occasionally offered for sale by northern native plant nurseries, but it is not the form native to Florida and the south and is unlikely to prosper here.

The above photos were taken by my friend, Floyd Griffith, and used by permission.




Monday, May 8, 2023

Narrowlweaf Vervain - Verbena simplex


 


Narrowleaf vervain (Verbena simplex) is a rare plant in Florida, having only been vouchered from Jackson County in the northcentral Panhandle.  It occurs throughout much of the eastern half of the US, however, and is common throughout.  Throughout its range, it is most often found in full sun, dry-mesic to dry conditions, and gravelly to sandy soil. 

This herbaceous perennial dies back to the ground in the winter and reemerges again in spring, eventually reaching a mature height of about 2 feet on a slender erect stem.  It often branches near the base, while above it is unbranched or sparingly branched. The stems are glabrous or short-pubescent; pairs of opposite leaves occur at intervals along these stems. The narrow leaves are 1¼–4" long and less than ½" across; they are narrowly oblanceolate or narrowly elliptic in shape and smooth to coarsely toothed along their margins. There are more teeth toward the tips of the leaves than at their bases. The leaves taper gradually into petiole-like bases. Their upper surfaces are pale to medium green and glabrous or sparsely short-pubescent.

Flowering occurs in late spring to summer at the ends of the stems in spike-like racemes.  There is only one raceme per stem. Only a few flowers bloom at the same time, beginning at the bottom and ending at the top of each raceme. Individual flowers are up to ¼" across, consisting of a lavender to nearly white corolla with 5 spreading lobes, a short tubular calyx with 5 teeth, 4 inserted stamens, and a pistil with a single style. At the base of each flower, there is a lanceolate leafy bract that is about the same length or a little shorter than the calyx. The blooming period occurs for about 2 months. Afterwards, the flowers are replaced by nutlets (4 per flower). These nutlets are oblongloid, somewhat flattened, and about 1/8" long.

All vervains are of interest to pollinators, especially bees.  It is the host for the verbena moth.  There are 7 native verbenas in Florida and 5 that are not.  None are currently in propagation by members of FANN - the Florida Association of Native Nurseries.  

These photos were taken by my friend, Floyd Griffith, and used by permission.

Sunday, May 7, 2023

Hairy Skullcap - Scutellaria elliptica -





 


Hairy skullcap (Scutellaria elliptica) is one of 13 native members of this very widespread genus.  This species has a limited distribution in Florida - occurring only in 11 north Florida  counties, but occurs widely north of us throughout much of the Midwest and from east Texas to Delaware and Pennsylvania across the Coastal Plain.  Throughout its range, this perennial mint is found in partly shady woodland understories in a variety of soil types, often near streams, but never in poorly drained conditions. 

It dies back to the ground in winter and reemerges again in early spring. It reaches its mature height of 2.5 feet by late spring and the flowers appear by early summer.  They are typical for the genus. The purple and blue flowers bloom from May to July in a 4-inch long raceme. Individual flowers are up to 3/4 inches long and 2-lipped with the upper one hooded and the lower one having white blotches. The calyx has long, spreading glandular hairs.

Hairy skullcap gets its common name from its distinctive foliage. The green leaves are 1.5-3 inches long and 3/4 to 1.5 inches wide. Margins are crenate to serrate, the shape is lanceolate-oblong to oval, the base is rounded to broadly wedge-shaped (cuneate) and the tip is blunt. The underside of the leaf is paler with hairs. The upper surface is dotted with glands. These are quite visible in the photos above.

Skullcaps are hosts for several species of moths and they are of special interest to bees that can squeeze into the hooded blooms. Despite the fact that this genus contains a great many ornamental and easy to grow wildflowers, only a few of Florida's native species are currently available commercially. Hairy skullcap is not one of them.  It is rarely offered by native nurseries outside of Florida.

These photos were taken by my friend, Floyd Griffith, and used by permission.