False Foxglove, Entire-leaved (Aureolaria laevigata)
False Foxglove, Entire-leaved is also known as Smooth False Foxglove. The Genus Aureolaria is also known as
Plant Type: This is a herbaceous plant which can reach 122cm tall
(48inches). This plant is not hairy.
Leaves: The leaf arrangement is opposite. The
leaves are entire and taper to a point except for the lower leaves which may be toothed or lobed.
The flowers have 5 Regular Parts and are up to 3.6cm long (1.4 inches). They are yellow. Blooms first
appear in mid summer and continue into mid fall. The flower stalk is at least .3cm (.125")
Habitat: Oak woods.
Range: Pennsylvania to Ohio and south to Georgia.
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This species of False Foxglove, un-like some others, is relatively
easy to identify by the leaves which, except for the lower ones, are entire and taper to a point. The flower length is a key
clue as is the fact that it will likely be growing under oak trees. It is semi-parasitic on oak.(Olmstead)
Species: There are several species of False Foxglove which is named for its resemblance to Foxglove,
Digitalis. Identifying the various species is tricky and may rely on subtle details such as the length of the flower or
the edge of the sepals.
Smooth plants with flower stems at least .3cm (.125") long and no teeth on the sepals.
Smooth Yellow False Foxglove, Aureolaria flava is very similar at a glance but
it grows taller (up to 2m (7')), has longer flowers, (to 6cm (2.5")) and has upper leaves that are toothed or lobed and lower
leaves that are deeply lobed or pinnately divided. The range of this plant extends further north and south extending from
Main to Florida. There are several varieties that are sometimes treated as separate species.
A. disperia has mostly ovate leaves which can
be deeply lobed but are without teeth. The flowers can be up to 5cm (2") long. It is found among oak trees on the coastal
plain from Alabama to Texas.
A. patula is similar to A. Dispersa but has lobed or divided leaves and slightly smaller flowers. It is
found only in Tennessee and northwestern Georgia.
Plants with flower stems less than .3cm (.125") long and no teeth on the sepals.
Foxglove, A. virginica has a downy stem and leaves. It grows to 1.5m (5'). The leaves range from wavy
edged to pinnately lobed to divided. It flowers from early summer to early fall from Main south to Florida in dry woods.
A. microcarpa Is mostly smooth with lanceolate leaves that may be wavy or lobed. It grows to 1.2m
(4'). The flowers can be up to 4cm (1.6"). It flowers from late summer to mid fall from eastern Tennessee south to
Florida among oak trees.
Plants with teeth on the sepals.
A. pedicularia has a hairy, glandular stem. All leaves are pinnately cleft with rounded teeth. It can reach
1.2m (4') in height. It flowers from late summer to early fall from Maine to as far south as Georgia in dry woods. A.
pectinata is very similar to A. pedicularia . It has pointed teeth on the leaves and a more glandular stem.
Its range is shifted south being found from North Carolina to Florida. It flowers from mid summer to mid fall. It may be
considered a variety of A. pedicularia.
Also similar is: Mullein Foxglove, Dasistoma macrophylla
By: Newcomb, Lawrence and Illustrated by Morrison, Gordon. 1977, Little, Brown and Company, ISBN:0-316-60442-9
One of the best general guides to wildflowers of the North Eastern and North Central United States. Newcomb's key
is an excellent, simple method for identifying plants. Newcomb has drawings for almost every plant mentioned that
are excellent aids to identifying the species. Though only the more common plants are covered this is often the first
book I pick up when trying to identify a wildflower.
wers of Tennessee the Ohio Valley and the Southern Appalachians
By: Dennis Horn and Tavia Cathcart and Thomas E. Hemmerly and David Duhl. , ISBN:1551054280
This is perhaps the best of many field guides covering this region. Featuring 446 excellent color photographs (located
with the text) and mentioning as similar to those illustrated are another 800 or so species for a total coverage of over
1,200 species. The start of each family section includes line drawings of some of the species showing important
features. The text includes the usual description, bloom season, range, habitat and additionally includes information
such as medical uses and lore and how the species was named. This is the official field guide of the Tennessee
Native Plant Society.
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Page updated on 7/7/2007 4:38:14 PM.